U.S. PATENT AND TRADEMARK OFFICE
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U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
Patents classified in a subclass may be accessed by either clicking on
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Electronic Products Branch)
Class 536
ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
Class Definition:
SUBCLASSES
Subclass:
1.11
Carbohydrates or derivatives:
This subclass is indented under the class definition.
Compounds which are saccharides whose monomeric units are
polyhydroxy mono-aldehydes or polyhydroxy mono-ketones having
the formula Cn(H2O)n (wherein n is five or six) or the
corresponding cyclic hemiacetals thereof; or the reaction
derivatives thereof in which the carbon skeleton and the
carbonyl function or hemi-acetal function of the saccharide
unit are not destroyed.
(1) Note. Carbohydrate degradation products which contain
fewer than five carbon atoms are not provided for in this or
indented subclasses, but are in appropriate subclasses in
classes in the 532-570 series.
(2) Note. Alcohol, acid, and amine derivatives of
carbohydrates which are formed by the alcohol, acid, or amine
function replacing the oxygen of the carbonyl group of the
carbohydrate are classified in the appropriate alcohol, acid,
and amine subclasses in Classes 568, 562, and 564,
respectively.
SEE OR SEARCH CLASS:
127, Sugar, Starch, and Carbohydrates, subclasses 36+ for
hydrolysis of carbohydrates wherein the process stops with
such hydrolysis or is followed by purification,
concentration, or crystallization, only.
162, Paper Making and Fiber Liberation, appropriate
subclasses for extracting cellulose from natural sources.
428, Stock Material or Miscellaneous Articles, subclasses
532+ for a nonstructural laminate including a layer
comprising carbohydrate.
435, Chemistry: Molecular Biology and Microbiology,
appropriate subclasses for biochemical or fermentation
processes of degrading, liberating or treating
carbohydrates.
527, Synthetic Resins or Natural Rubbers, appropriate
subclasses for the solid reaction product of the reaction
between a carbohydrate and a polymer or a polymer forming
substance.
549, Organic Compounds, subclass 315 for ascorbic acid.
562, Organic Compounds, subclasses 512+ for acids which
have the same basic structure as carbohydrates or which are
degradation products thereof, especially subclass 597 for
oxalic acid.
568, Organic Compounds, subclasses 852+ for alcohols, such
as sorbitol, having the same basic structure as
carbohydrates.
Subclass:
2
This subclass is indented under subclass 1.11. Compounds
which are pectins and reaction products thereof.
SEE OR SEARCH CLASS:
426, Food or Edible Material: Processes, Compositions, and
Products, subclass 577, for food compositions containing
pectin.
Subclass:
3
This subclass is indented under subclass 1.11. Compounds
which are algins or reaction products thereof.
SEE OR SEARCH CLASS:
426, Food or Edible Material: Processes, Compositions, and
Products, subclass 656, for food compositions containing
algin.
Subclass:
4.1
O- or S-Glycosides:
This subclass is indented under subclass 1.11. Compounds
which an acetal or thiocetal derivatives of the cyclic forms
of sugars in which the hydrogen atom of the hemiacetal
hydroxyl or hemithioacetal sulfhydryl group has been replaced
by an alkyl, aralkyl, or aryl group.
(1) Note. An O- or S- glycoside is basically a compound
having a sugar moeity connected to an aglycone moiety via
oxygen or sulfur.
(2) Note. On complete hydrolysis these compounds yield one
or more monosaccharides, and mono or polyhydric alcohol or
phenol, or sulfur analogs thereof.
(3) Note. The cyclic sugars referred to in the definitions
are normally pyranoses or furanoses.
(4) Note. Glycosides derived from aldoses are referred to
as aldosides, and those from ketoses are ketosides.
(5) Note. This subclass includes arbutin, amygdalin, and
salicin, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
2 for pectins.
SEE OR SEARCH CLASS:
560, Organic Componds, subclass 68 for tannins some of which
are probably glycosides.
Subclass:
4.4
Aescin or derivative:
This subclass is indented under subclass 4.1. Products which
consist of a mixture of sapogenin glycosides (saponins)
obtained from the seed of the horse chestnut tree (Aesculus
hippocastanum).
Subclass:
5
This subclass is indented under subclass 4.1. Compounds in
which the aglycone moiety of the glycoside contains a
cyclopentanohydrophenanthrene nucleus.
Subclass:
6
This subclass is indented under subclass 5. Compounds wherein
a six- membered hetero-O-cyclic substituent is connected
directly to a carbon atom of the cyclopentanohydrophenathrene
nucleus.
Subclass:
6.1
Oxygen containing five-membered hetero ring:
This subclass is indented under subclass 5. Compounds wherein
a five-membered hetero-O-cyclic substitutent is connected
directly to a carbon atom of the
cyclopentanohydrophenanthrene nucleus.
(1) Note. This subclass includes, for example, neutral
saponins and glycosides having an aglycone moeity described
as cardenolide. Acid saponins (i.e., triterpenoid saponins)
are not subject matter for this subclass. For purposes of
classification, saponins which are not designated as acid or
neutral are considered neutral and are classified herein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4.1 for acid saponins (i.e., triterpenoid saponins) which
are known not to contain the cyclopentanohydrophenanthrene
nucleus.
4.4 for aescin or derivatives.
Subclass:
6.2
Nitrogen, phosphorus or halogen containing:
This subclass is indented under subclass 6.1. Compounds which
contain nitrogen, phosphourus, or halogen.
Subclass:
6.3
Processes of extracting from plant materials:
This subclass is indented under subclass 6.1. Processes which
include extracting the compound from plant materials.
Subclass:
6.4
Daunomycin or derivative:
This subclass is indented under subclass 4.1. Compounds which
have the following structural formula and derivatives
thereof: [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
16.8 for glycoside antibiotics structurally similar to
daunomycin wherein the anthracycline structure is destroyed
or wherein the amino group is removed from daunosamine.
18.7 for daunosamine, per se.
Subclass:
6.5
Oxygen containg hetero ring of at least twenty ring members
(e.g., amphotercin, nystatin, pimaricin, etc.):
This subclass is indented under subclass 4.1. Compounds which
contain a hetero-O-cyclic substitutent of twenty or more ring
members.
(1) Note. The compounds provided for herein are commonly
referred to as "macrolide antibiotics" or "polyene macrolide
antibiotics". They include a macrocyclic lactone ring with
various ketonic an hydroxyl functions glycosidically bound to
deoxysugars. As representative of this class of compounds
there may be mentioned amphotericin A, amphotericin B,
candicidin, nystation, perimycin, and pimaricin.
(2) Note. Examples of compounds provided for herein are:
[figure] [figure]
Subclass:
7.1
Oxygen containing hetero ring having 12-19 members (e.g.,
methymycin, carbomycin, spiramycin, etc.):
This subclass is indented under subclass 4.1. Compounds which
contain a hetero-O-cyclic substitutent of twelve or more ring
members.
(1) Note. Examples of compounds provided for herein are:
[figure] [figure]
Subclass:
7.2
Erythromycin or derivative (e.g., oleandomycin, etc.):
This subclass is indented under subclass 7.1. Compounds which
have the following structure and derivatives thereof wherein
the three-part structure shown is not destroyed, and wherein
the dimethylamine group of desosamine is not removed, but may
be substituted. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
7.1 for desdimethylamine erythromycins.
18.7 for desosamine, per se.
Subclass:
7.3
Boron, phosphorus or sulfur containing:
This subclass is indented under subclass 7.2. Compounds which
contain boron, phosphorus, or sulfur.
Subclass:
7.4
Additional nitrogen containing:
This subclass is indented under subclass 7.2. Compounds which
contain at least one nitrogen other than the desosamine
nitrogen.
Subclass:
7.5
Purification or recovery:
This subclass is indented under subclass 7.2. Processes which
include separating the compound from impurities or from the
reaction mixture.
Subclass:
8
This subclass is indented under subclass 4.1. Compounds which
upon hydrolysis yield a sugar, or mixture of sugars, and the
anthoxanthins.
(1) Note. The anthoxanthins include the flavones, the
flavonols, the flavonones, the isoflavones and the
xanthones.
(2) Note. The compounds are usually plant pigments.
(3) Note. The subclass provides for rutin, quercitrin,
hesperidin, citronin and eriodictin, etc.
(4) Note. The flavone moiety is the aglycone portion of the
compound.
Subclass:
8.8
Coumermycin or derivative:
This subclass is indented under subclass 4.1. Compounds which
have the following structural formula (below) and derivatives
thereof.: [figure]
Subclass:
13
This subclass is indented under subclass 4.1. Compounds which
have the following structural formula (below) and derivatives
thereof. [figure]
Subclass:
13.1
Antibiotic BM 123 or derivative:
This subclass is indented under subclass 4.1. Compounds which
have the following isomeric structural formulae (below) and
derivatives thereof.: [figure]
Subclass:
13.2
Neomycin B or neomycin C or derivative:
This subclass is indented under subclass 4.1. Compounds which
have the following structural formulae (below): and
derivatives, complexes, or mixtures thereof. [figure]
Subclass:
13.3
Paromomycin or derivative (e.g., neomycin E, etc.):
This subclass is indented under subclass 4.1. Compounds which
have the following structural formula (below) and derivatives
thereof.: [figure]
Subclass:
13.4
Antibiotic XK or derivative:
This subclass is indented under subclass 4.1. Compounds which
may have any of the following structural formulae (below) and
derivatives thereof. [figure]
(1) Note. Included herein are antibiotics of the XK-88
series, such as XK-88-5, also named seldomycin factor 5, and
those of the XK-62 series, such as XK-62-2.
Subclass:
13.5
Butirosin or derivative (e.g., ambutyrosin, etc.):
This subclass is indented under subclass 4.1. Compounds which
have the following structural formula (below) and
derivatives thereof. [figure]
Subclass:
13.6
Gentamicin or derivative:
This subclass is indented under subclass 4.1. Compounds which
have the folllowing structural formula (below) and
derivatives thereof. [figure]
Subclass:
13.7
Kanamycin or derivative:
This subclass is indented under subclass 4.1. Compounds which
have the following structural formula: (below) and
derivatives thereof. [figure]
Subclass:
13.8
Carbonyl bonded directly to kanamycin nitrogen:
This subclass is indented under subclass 13.7. Compounds
which include at least one carbonyl group directly bonded to
a nitrogen of kanamycin.
Subclass:
13.9
Sisomicin or derivative:
This subclass is indented under subclass 4.1. Compoounds
which have the following structural formula (below) and
derivatives thereof. [figure]
Subclass:
14
This subclass is indented under subclass 4.1. Compounds which
have the following structural formula (below) or which have
the structure of any of the three main components shown in
the formula; and derivatives thereof. [figure]
Subclass:
15
This subclass is indented under subclass 14. Compounds which
are reduction products of streptomycin and have the following
formula (below) and derivatives thereof. [figure]
Subclass:
16
This subclass is indented under subclass 14. Compounds which
result from an addition-type reaction of streptomycin, or a
derivative thereof, with another compound.
(1) Note. This subclass provides for the addition salts
formed by reacting streptomycin with metal halides, organic
amines, organic or inorganic acids, etc.
Subclass:
16.1
Fortimicin or derivative:
This subclass is indented under subclass 4.1. Compounds which
have the following structural formula (below) and derivatives
thereof. [figure]
Subclass:
16.2
Lincomycin or derivative:
This subclass is indented under subclass 4.1. Compounds which
have the following structural formula (below) and derivatives
thereof. [figure]
Subclass:
16.3
Cyano or -COO- containing:
This subclass is indented under subclass 16.2. Compounds
which contain a -CN or -COO group.
Subclass:
16.4
Additional sulfur containing:
This subclass is indented under subclass 16.2. Compounds
which contain at least two sulfurs.
Subclass:
16.5
Phosphorus or halogen containing:
This subclass is indented under subclass 16.2. Compounds
which contain phosphorus or halogen.
Subclass:
16.6
Neamine or derivative (e.g., neomycin A, etc.):
This subclass is indented under subclass 4.1. Compounds which
have the following structural formula (below) and derivatives
thereof. [figure]
Subclass:
16.7
Kasugamycin or derivative:
This subclass is indented under subclass 4.1. Compounds which
have the following structural formula (below) and derivatives
thereof. [figure]
Subclass:
16.8
Antibiotics:
This subclass is indented under subclass 4.1. Compounds which
have the capacity to inhibit the growth of or destroy
micro-organisms and are generally emplyed to kill disease in
aperson or animal.
(1) Note. Anibiotics are generally produced by a bacterium
or fungus, however, such processes are not provided for
herein.
(2) Note. The compound may be antibacterial or antifungal.
(3) Note. This subclass provides for antibiotics which are
not provided for in specific antibiotic subclasses above.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology And Microbiology, for
processes of making antibiotics by cultivating
micro-oganisms.
Subclass:
16.9
Purification or recovery:
This subclass is indented under subclass 16.8. Processes
which include separating the antibiotic(s) from inpurities or
from the reaction mixture.
Subclass:
17.1
Boron, phosphorus, heavey metal or aluminum containing:
This subclass is indented under subclass 4.1. Compounds which
contain boron, phosphorus, a metal having a specific gravity
greater than four, or aluminum.
Subclass:
17.2
Nitrogen containing:
This subclass is indented under subclass 4.1. Compound which
contain nitrogen.
Subclass:
17.3
Nitrogen containing hetero ring:
This subclass is indented under subclass 17.2. Compounds
which contain nitrogen containing heterocyclic ring.
Subclass:
17.4
Nitrogen in aglycone moiety:
This subclass is indented under subclass 17.3. Compound which
contain nitrogen in the aglycone (nonsugar) moiety of the
glycoside.
Subclass:
17.5
Sulfur containing (e.g., methylthiolincosaminide, etc.).:
This subclass is indented under subclass 17.2. Compounds
which contain sulfur.
Subclass:
17.6
Nitrogen or sulfur in aglycone moiety:
This subclass is indented under subclass 17.5. Compounds
which contain nitrogen or sulfur in the aglycone (nonsugar)
moiety of the glycoside.
Subclass:
17.7
Nitro or nitroso containing:
This subclass is indented under subclass 17.2. Compounds
which contain nitro or nitroso.
Subclass:
17.8
Nitrogen in aglycone moiety:
This subclass is indented under subclass 17.7. Compounds
which contain nitrogen in the aglycone (nonsugar) moiety of
the glycoside.
Subclass:
17.9
Nitrogen in aglycone moiety:
This subclass is indented under subclass 17.2. Compounds
which contain nitrogen in the aglycone (nonsugar) moiety of
the glycoside.
Subclass:
18.1
Polycyclo ring system (e.g., hellebrin, etc.):
This subclass is indented under subclass 4.1. Compounds which
contain a polycyclo ring system.
Subclass:
18.2
Containing -C(=X)X- wherein the X's are the same or diverse
chalcogens:
This subclass is indented under subclass 4.1. Compounds which
contain a -C(=X)X- group wherein the X's are the same of
diffierent and are O, S, Se, or Te.
Subclass:
18.3
Plural oxyalkylene groups bonded directly to each other.
This subclass is indented under subclass 4.1. Compounds which
contain two or more successive oxyalkylene groups.
Subclass:
18.4
Halogen containing:
This subclass is indented under subclass 4.1. Compounds which
contain halogen.
Subclass:
18.5
Processses:
This subclass is indented under subclass 4.1. Processes which
are directed to the preparation, purification, recovery,
stabilization of treatment of an O- or S- glycoside.
Subclass:
18.6
Reacting a carbohydrate with an organic -O- containing
compound (e.g., reacting glucose with methanol, etc.)
This subclass is indented under subclass 18.5. Processes
which include perparing the glycoside by reacting a
carbohydrate with an organic compound containing -O-.
Subclass:
18.7
Nitrogen containing:
This subclass is indented under subclass 1.1. Compounds which
are nitrogen containing derivatives of carbohydrates.
Subclass:
20
This subclass is indented under subclass 18.7. Compounds
which upon acid hydrolysis yield acetylglucosamine and which
are polysaccharides having the following repeating unit
(below) and derivatives thereof. [figure]
(1) Note. Chitin is a horny substance that forms part of
the hard outer shell of insects and crustaceans and is
structurally similar to cellulose.
Subclass:
21
This subclass is indented under subclass 18.7. Compounds
which are polysaccharides containing the following repeating
unit wherein the degree of sulfation of the individual
components in the polysaccharide is apparently not uniform
and may vary at different areas of the carbohydrate chain,
and derivatives thereof. [figure]
(1) Note. Heparin is a natural substance which can be found
in various tissues of mammals, especially the lung, spleen,
liver and muscle, and has been used medicinally for
coagulation of blood and metabolism of lipids.
Subclass:
22.1
N-glycosides, polymers thereof, metal derivatives (e.g.,
nucleic acids, oligonucleotides, etc.):
This subclass is indented under subclass 18.7. Compounds
which are glycosidic derivatives of the cyclic forms of
sugars in which the aglycone portion is attached thru
nitrogen to the sugar moiety by substituting it for the
hemiacetal hydroxyl of the sugar.
(1) Note. The compounds included herein are N-glycosides,
nucleic acids, oligonucleotides, metal derivatives of
nucleic acids, etc.
(2) Note. A nucleoside is an N-glycoside wherein the
aglycone portion is a pyrimidine ring or a purine ring system
attached thru ring nitrogen to a pentose sugar (either a
ribose or a deoxyribose).
(3) Note. A nucleotide is a phosphorylated nucleoside.
(4) Note. Polynucleotides, also called nucleic acids, are
covalently linked series of nucleotides in which the 3i
position of the pentose of one nucleotide is joined by a
phosphodiester group to the 5i position of the next.
(5) Note. DNA (deoxyribonucleic acid) and RNA (ribonucleic
acid) are biologically occurring polynucleotides in which the
nucleotide residues are linked in a specific sequence by
phosphodiester linkages.
(6) Note. The numbering of the members of the purine ring
system in these subclasses does not follow the Ring Index
numbering system. The numbering system followed is:
[figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 4+ for glycosides wherein the aglycone moiety is
attached to the sugar portion through an oxygen or sulfur
atom.
25.5 for homopolymers wherein the monomeric unit is a
nucleotide or a nucleoside.
SEE OR SEARCH CLASS:
544, Organic Compounds, subclass 243 for nucleotide analogs
which are not glycosides.
Subclass:
23.1
DNA or RNA fragments or modified forms thereof (e.g., genes,
etc.):
This subclass is indented under subclass 22.1. Compounds
which are fragments of nucleic acid having a specific
sequence of deoxyribonucleotide units, or ribonucleotide
units, linked by successive 3i-5i phosphodiester linkages, or
modified derivatives thereof.
(1) Note. A gene is a fragment of DNA that encodes a
specific polypeptide in a recombinant process.
(2) Note. "Encodes" means that the fragment of DNA
specifies the amino acid sequence of the polypeptide
expressed by a microorganism that has been transformed with
such fragment of DNA.
(3) Note. For purposes of this class the term microorganism
includes bacteria, actinomycetales, cyanobacteria
(unicellular algae), fungi, protozoa, animal cells, plant
cells, and virus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
24.1 for non-coding sequences which control transcription or
translation.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology, subclass
69.1 and 440+ for recombinant processes that utilize DNA
fragments and subclass 320.1 for plasmids (circular
extrachromosomal self replicating fragments of DNA).
436, Chemistry: Analytical and Immunological Testing,
appropriate subclasses for monenzymatic analytical processes
which test for, or utilize, N-glycosides, polynucleotides, or
polynucleosides.
514, Drug, Bio-Affecting, and Body Treating Compositions,
appropriate subclasses for therapeutic composition and
methods of using DNA fragments, RNA fragments, nucleotides,
or nucleosides.
530, Chemistry: Natural Resins or Derivatives; Peptides or
Proteins; Lignins or Reaction Products Thereof, appropriate
subclasses for polypeptides or proteins that are products
obtained from recombinant processes that utilize fragments of
DNA.
Subclass:
23.2
Encodes an enzyme:
This subclass is indented under subclass 23.1. Compounds
which are DNA fragments which encode specific enzymes.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology, subclass
172.3 for recombinant processes which utilize fragments of
DNA.
Subclass:
23.4
Encodes a fusion protein:
This subclass is indented under subclass 23.1. Compounds
which are DNA fragments which encode specific fusion
proteins.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology, subclass
172.3 for recombinant processes which utilize fragments of
DNA.
Subclass:
23.5
Encodes an animal polypeptide:
This subclass is indented under subclass 23.1. Compounds
which are DNA fragments which encode specific animal
polypeptides.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology, subclass
172.3 for recombinant processes which utilize fragments of
DNA.
Subclass:
23.51
Hormone:
This subclass is indented under subclass 23.5. Compounds
which are DNA fragments which encode specific hormones.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology, subclass
172.3 for recombinant processes which utilize fragments of
DNA.
Subclass:
23.52
Interferon:
This subclass is indented under subclass 23.5. Compounds
which are DNA fragments which encode specific interferons.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology, subclass
172.3 for recombinant processes which utilize fragments of
DNA.
Subclass:
23.53
Immunoglobulin:
This subclass is indented under subclass 23.5. Compounds
which are DNA fragments which encode specific
immunoglobulins.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology, subclass
172.3 for recombinant processes which utilize fragments of
DNA.
Subclass:
23.6
Encodes a plant polypeptide:
This subclass is indented under subclass 23.1. Compounds
which are DNA fragments which encode specific plant
polypeptides.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology, subclass
172.3 for recombinant processes which utilize fragments of
DNA.
Subclass:
23.7
Encodes a microbial polypeptide:
This subclass is indented under subclass 23.1. Compounds
which are DNA fragments which encode specific microbial
polypeptides.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology, subclass
172.3 for recombinant processes which utilize fragments of
DNA.
Subclass:
23.71
Bacillus thuringiensis insect toxin:
This subclass is indented under subclass 23.7. Compounds
which are DNA fragments which encode Bacillus thuringiensis
insect toxins.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology,
subclasses 440+ for recombinant processes which utilize
fragments of DNA.
Subclass:
23.72
Viral protein:
This subclass is indented under subclass 23.7. Compounds
which are DNA fragments which encode specific viral
proteins.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology,
subclasses 440+ for recombinant processes which utilize
fragments of DNA.
Subclass:
23.74
Fungal protein:
This subclass is indented under subclass 23.7. Compounds
which are DNA fragments encode specific fungal proteins.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology, subclass
172.3 for recombinant processes which utilize fragments of
DNA.
Subclass:
24.1
Non-coding sequences which control transcription or
translation processes (e.g., promoters, operators, enhancers,
ribosome binding sites, etc.):
This subclass is indented under subclass 23.1. Fragments of
DNA which are sequences of nucleotides which do not encode
polypeptides in recombinant processes, but which regulate the
expression of such chemical compounds in such processes.
(1) Note. Included herein are such compounds as promoters,
operators, ribosome binding sites, enhancers, etc.
Subclass:
24.2
Non-coding sequences having no known regulatory function and
which are adaptors or linkers for vector or gene
construction:
This subclass is indented under subclass 23.1. Compounds
which are fragments of DNA, which have utility in
constructing a desired gene or in the insertion of genetic
material into a vector.
(1) Note. A vector is a vehicle employed to introduce a
nucleic acid sequence, or gene, into a cell.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology, subclass
320.1 for vectors.
Subclass:
24.3
Probes for detection of specific nucleotide sequences or
primers for the synthesis of DNA or RNA:
This subclass is indented under subclass 23.1. Fragments of
nucleic acids which have utility as probes for the detection
of specific nucleotide sequences, or as primers for the
synthesis of DNA or RNA.
(1) Note. A probe is a single strand of DNA or RNA which
could be labelled, and which hybridizes by complementary base
pairing with another single strand of DNA or RNA.
(2) Note. A primer is a sequence of nucleotides which is
used in the synthesis of DNA or RNA.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology, subclass
6 for analytical processes that utilize probes for detecting
the presence, or absence, of a particular nucleotide
sequence.
Subclass:
24.31
Probes for detection of animal nucleotide sequences:
This subclass is indented under subclass 24.3. Fragments of
nucleic acid which are single strands of DNA or RNA with
utility in analytical processes for the detection of
complementary nucleotide sequences of animal origin.
Subclass:
24.32
Probes for detection of microbial nucleotide sequences:
This subclass is indented under subclass 24.3. Fragments of
nucleic acid which are single strands of DNA or RNA with
utility in analytical processes for the detection of
complementary nucleotide sequences of microbial origin.
Subclass:
24.33
Primers:
This subclass is indented under subclass 24.3. Fragments of
nucleic acids which have utility as primers.
(1) Note. A primer is a sequence of nucleotides which is
used in the synthesis of DNA or RNA.
Subclass:
24.5
Nucleic acid expression inhibitors:
This subclass is indented under subclass 23.1. Fragments of
DNA or RNA which are effective inhibitors of transcription or
translation.
(1) Note. Transcription is the process by which the genetic
information contained in a fragment of DNA specifies the
complementary sequence of bases in an RNA chain.
(2) Note. Translation is the process by which the genetic
information contained in a fragment of RNA directs or
specifies the sequence of amino acids in polypeptide
synthesis.
Subclass:
25.1
3i-5i linked RNA:
This subclass is indented under subclass 22.1. Compounds
which are polyribonucleotides of a specific sequence wherein
the ribonucleotide units are linked by 3i-5i phosphodiester
linkages.
Subclass:
25.2
2i-5i linked RNA:
This subclass is indented under subclass 22.1. Compounds
which are polyribonucleotides of a specific sequence wherein
theribonucleotide units are linked by 2i-5i phosphodiester
linkages.
Subclass:
25.3
Synthesis of polynucleotides or oligonucleotides:
This subclass is indented under subclass 22.1. Process for
the synthesis of polynucleotides or oligonucleotides, which
process may be, or include, a crosslinking step.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology,
appropriate subclasses for processes for the synthesis of
polynucleotides or oligonucleotides that utilize a
microorganism or an enzyme.
Subclass:
25.31
Deprotection step:
This subclass is indented under subclass 25.3. Processes for
the synthesis of polynucleotides or oligonucleotides which
include a deprotection step.
Subclass:
25.32
Labels or markers utilized (e.g., radiotracer, affinity,
fluorescent, phosphorescent markers, etc.):
This subclass is indented under subclass 25.3. Processes for
the synthesis of polynucleotides or oligonucleotides in which
a label or marker is used to indicate the presence of a
particular product.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology, subclass
91.1 for processes of synthesizing polynucleotides or
oligonucleotides which include an enzyme utilized as a label
or in any other category.
Subclass:
25.33
Pentavalent phosphorus compound utilized:
This subclass is indented under subclass 25.3. Processes for
the synthesis of polynucleotides and oligonucleotides which
utilize pentavalent phosphorus compounds.
Subclass:
25.34
Trivalent phosphorus compound utilized:
This subclass is indented under subclass 25.3. Processes for
the synthesis of polynucleotides and oligonucleotides which
utilize trivalent phosphorus compounds.
Subclass:
25.4
Separation or purification of polynucleotides or
oligonucleotides:
This subclass is indented under subclass 22.1. Processes for
the purification or separation of polynucleotides or
oligonucleotides.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology,
appropriate subclasses for processes for the purification or
separation of polynucleotides or olygonucleotides that
utilize a microorganism or an enzyme.
Subclass:
25.41
Extraction processes (e.g., solvent extraction process,
etc.):
This subclass is indented under subclass 25.4. Processes for
the purification or separation of polynucleotides or
oligonucleotides which include extraction steps, e.g.,
solvent extraction processes, etc.
Subclass:
25.42
Denaturant utilized:
This subclass is indented under subclass 25.41. Processes for
the separation or purification of polynucleotides or
oligonucleotides which include extraction steps, which
processes utilize a denaturant.
Subclass:
25.5
Homopolymers having repeating sequences of four or more
identical nucleotide units:
This subclass is indented under subclass 22.1.
Polynucleotides consisting of four or more identical
nucleotide units linked by phosphodiester linkages.
Subclass:
25.6
Nucleic acids which include two or three nucleotide units:
This subclass is indented under subclass 22.1. Compounds
which include two or three nucleotide units linked by
phosphodiester linkages.
(1) Note. Each unit has to be a nucleotide unit, i.e., a
phosphoesterified nucleoside.
SEE OR SEARCH THIS CLASS, SUBCLASS:
26.5 for plural N-glycosides bonded to the same phosphorus
ester group wherein the N is part of a nitrogen containing
hetero ring.
Subclass:
26.1
Phosphorus containing N-glycoside wherein the N is part of
an N-hetero ring:
This subclass is indented under subclass 22.1. Compounds
which are N-glycosides which contain phosphorus and wherein
the N of the N-glycoside moiety is part of a nitrogen
containing hetero ring.
(1) Note. Nucleotides are provided for in this and indented
subclasses.
(2) Note. An example of a compound provided for herein is:
[figure]
Subclass:
26.11
The phosphorus is part of a ring:
This subclass is indented under subclass 26.1. Compounds
wherein the phosphorus is part of a ring structure.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
26.12
The N-hetero ring is part of a purine ring system:
This subclass is indented under subclass 26.11. Compounds in
which the nitrogen containing hetero ring is part of a purine
ring system.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
26.13
Adenine or substituted adenine:
This subclass is indented under subclass 26.12. Compounds in
which the purine ring system is adenine, i.e., 6-aminopurine,
which may be substituted.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
26.14
The N-hetero ring is a diazine or a diazole ring, including
hydrogenated:
This subclass is indented under subclass 26.11. Compounds in
which the nitrogen containing hetero ring is a diazine ring,
i.e., a six-membered hetero ring with two nitrogens and four
carbons, or a diazole ring, i.e., a five-membered hetero ring
with two nitrogens and three carbons, which nitrogen
containing hetero ring could be hydrogenated.
(1) Note. Examples of compounds provided for herein are:
[figure] [figure]
Subclass:
26.2
Plural phosphorus atoms in N-glycoside:
This subclass is indented under subclass 26.1. Compounds
which contain more than one phosphorus atom.
(1) Note. Examples of compounds provided for herein are:
[figure] [figure]
Subclass:
26.21
Plural phosphorus atoms bonded directly to the same chalcogen
in a chain (e.g., pyrophosphates, polyanhydrides of
phosphorus acids, etc.):
This subclass is indented under subclass 26.2. Compounds
which contain two phosphorus bonded directly to the same
chalcogen (i.e., oxygen, sulfur selenium or tellurium) in a
chain.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
26.22
Both terminal phosphorus atoms are esterified by organic
groups wherein one of these organic groups is the sugar
moiety:
This subclass is indented under subclass 26.21. Compounds
wherein both terminal phosphorus atoms are esterified by
organic groups wherein one of the organic groups is the sugar
moiety.
(1) Note. Examples of compounds provided for herein are:
[figure] [figure]
Subclass:
26.23
Exactly two phosphorus atoms in the chain (e.g., coenzyme A,
etc.):
This subclass is indented under subclass 26.22. Compounds in
which the chain consists of two phosphorus groups bonded
directly to the same chalcogen in the chain.
(1) Note. Examples of compounds provided for herein are:
[figure] [caption]coenzyme A [figure] [caption]uridine
diphosphate glucose
Subclass:
26.24
NAD (nicotinamide adenine dinucleotide) and derivatives
thereof:
This subclass is indented under subclass 26.23. The compound
which is nicotinamide adenine dinucleotide and derivatives
thereof.
(1) Note. The structure for nicotinamide adenine
dinucleotide is: [figure]
Subclass:
26.25
FAD (flavin adenine dinucleotide) and derivatives thereof:
This subclass is indented under subclass 26.23. The compound
which is flavin adenine dinucleotide and derivatives
thereof.
(1) Note. The structure for flavin adenine dinucleotide is:
[figure]
Subclass:
26.26
Triphosphates (in same chain):
This subclass is indented under subclass 26.21. Compounds
which contain a chain of three phosphorus joined by chalcogen
atoms.
(1) Note. An example of a compound provided for herein is
adenosine triphosphate: [figure]
Subclass:
26.3
Plural monophosphate groups (e.g., adenosine -3i,5i-
biscarboxymethyl phosphonate, cytidine nucleoside
diphosphate, etc.):
This subclass is indented under subclass 26.2. Compounds
which include two or more monophosphate groups attached
indirectly to each other.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
26.4
Cobalamin nucleotides (e.g., vitamin B-12, etc.):
This subclass is indented under subclass 26.1. Compounds
which are cobalt containing nucleotides.
(1) Note. An example of a compound provided for herein is
vitamin B-12. [figure]
Subclass:
26.41
Processes of preparing or labelling:
This subclass is indented under subclass 26.4. Processes for
the preparation of cobalamin nucleotide compounds or for the
labelling of these compounds.
Subclass:
26.42
Processes of concentration, separation, recovery, or
extraction (e.g., recovery from organ extracts, from
fermentation broth, from sewage sludge, etc.):
This subclass is indented under subclass 26.4. Processes for
the separation, extraction, recovery, or concentration of
cobalamin nucleotide compounds.
Subclass:
26.43
Adsorbent used (e.g., activated alumina, ion exchange resins,
etc.):
This subclass is indented under subclass 26.42. Processes for
the separation, extraction, recovery or concentration wherein
an adsorbent is used.
Subclass:
26.44
Cobalamin analogs (i.e., compounds wherein the benzimidazole
ring system has been replaced by another organic ring
structure, or compounds wherein cobalt has been removed or
replaced by another metal, or is substituted by a group other
than -OH or -CN):
This subclass is indented under subclass 26.1. Compounds
which are cobalamin analogs, e.g., compounds wherein the
benzimidazole ring system has been replaced by another ring
structure, or wherein the cobalt metal has been removed or
replaced by another metal or the cobalt is substituted by a
group other than -OH or -CN, etc.
Subclass:
26.5
Plural N-glycosidic moieties bonded to the same phosphorus
ester group:
This subclass is indented under subclass 26.1. Compounds
wherein plural N-glycosidic groups are bonded directly to the
same phosphorus ester group.
(1) Note. An example of a compound provided for herein is:
[figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
25.6 for nucleic acids which include two or three nucleotide
units linked by phosphodiester linkages.
Subclass:
26.6
Labelled (e.g., tagged with radioactive tracer, fluorescent
marker, intercalator, etc.):
This subclass is indented under subclass 26.1. Compounds to
which a marker (chemical, radioactive, fluorescent, etc.) has
been added to indicate its presence.
Subclass:
26.7
The N-hetero ring is part of a bicyclic ring system:
This subclass is indented under subclass 26.1. Compounds
wherein the N-hetero ring is part of a bicyclic hetero ring
system.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
26.71
Preparing purine nucleotides:
This subclass is indented under subclass 26.7. Processes for
the preparation of purine nucleotides.
Subclass:
26.72
Guanosine nucleotide preparation:
This subclass is indented under subclass 26.71. Processes for
the preparation of guanosine nucleotide.
Subclass:
26.73
Separation or purification of purine nucleotides:
This subclass is indented under subclass 26.7. Processes for
the separation or purification of purine nucleotides.
Subclass:
26.74
Inosine nucleotide:
This subclass is indented under subclass 26.7. The compound
which is inosine nucleotide.
(1) Note. The compound provided for herein is:
[figure]
Subclass:
26.8
The N-hetero ring is six-membered and monocyclic (e.g.,
uridine-5i-monophosphate, etc.):
This subclass is indented under subclass 26.1. Compounds
wherein the N-hetero ring is six-membered and is not part of
a polycyclic ring system.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
26.9
The N-hetero ring is five-membered (e.g.,
l-b-D-ribofuranosyl-1,2,3-triazole-4-carboxamide-5i-phosphate, etc.):
This subclass is indented under subclass 26.1. Compounds
wherein the N-hetero ring is five-membered.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
27.1
N-glycosides wherein the N is part of an N-hetero ring which
hetero ring is part of a polycyclo ring system containing an
N-hetero ring and an additional hetero ring (e.g.,
rebeccamycin, etc.):
This subclass is indented under subclass 22.1. Compounds
which are N-glycosylamines wherein the N of the N-glycoside
moiety is part of a nitrogen containing hetero ring which
hetero ring is part of a polycyclo ring system that contains
the N-hetero ring and an additional hetero ring.
(1) Note. This and indented subclasses do not provide for
compounds that contain a phosphorus ester group attached to
the sugar moiety.
(2) Note. Nucleosides are provided for in this and indented
subclasses.
(3) Note. An example of a compound provided for herein is
rebeccamycin: [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
26.1 for nucleotides, i.e., phosphorus containing
nucleosides.
Subclass:
27.11
Preparing by cleaving nucleic acids or by attaching an
N-heterocyclic base to a sugar ring:
This subclass is indented under subclass 27.1. Processes for
the preparation of N-hetero glycosides which include cleaving
(degradation) of nucleic acids or bonding an N-heterocyclic
base to a sugar ring.
(1) Note. Chemical cleaving (degradation) of nucleic acids
is provided for in this subclass.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology,
subclasses 85+ for processes of cleaving nucleic acids
which utilize a micro-organism or an enzyme.
Subclass:
27.12
Separation or purification (e.g., resolving isomeric
mixtures, etc.):
This subclass is indented under subclass 27.1. Processes for
the separation, isolation, or purification of the N-hetero
glycosides.
(1) Note. Chemical processes for resolving isomeric
mixtures are included in this subclass.
SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology,
appropriate subclasses for processes for the separation,
isolation or purification of N-glycosides or nucleic acids
which utilize a micro-organism or an enzyme.
Subclass:
27.13
Bicyclic ring system consisting of the N-hetero ring fused to
another hetero ring (e.g., 2-azaadenines, 6-azaadenines,
etc.):
This subclass is indented under subclass 27.1. Compounds
wherein the N-hetero ring is part of a bicyclic ring system
which consists of an N-hetero ring fused to another hetero
ring.
(1) Note. Examples of compounds provided for herein are:
[figure] [figure] [figure]
Subclass:
27.14
Multideoxy or didehydro:
This subclass is indented under subclass 27.13. Compounds
wherein two or more -OH groups, which would normally be
attached to the sugar ring, have been replaced by hydrogen or
another chemical group.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
27.2
The bicyclic ring system consists of a 1,3 diazine ring,
which may be hydrogenated, fused to a five-membered N-hetero
ring (e.g., purine isoesters like tubercidin, toyocamycin,
sangivamycin, sparsomycin A, etc.):
This subclass is indented under subclass 27.13. Compounds
wherein a 1,3-diazine hetero ring, which may be hydrogenated,
is fused to a five-membered N-hetero ring.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
27.21
The five-membered N-hetero ring is 1,3-diazole, which may be
hydrogenated (e.g., 6-chloropurine nucleoside, nebularin,
etc.):
This subclass is indented under subclass 27.2. Compounds
wherein the fused five-membered N-hetero ring is 1,3-diazole,
which may be hydrogenated.
(1) Note. Examples of compounds provided for herein are
(nebularin = top structure): [figure] [figure]
Subclass:
27.22
Carbonyl, thiocarbonyl, or nitrogen, other than as nitro or
nitroso, bonded directly to the sugar ring:
This subclass is indented under subclass 27.21. Compounds
wherein the sugar ring of the nucleoside is bonded directly
to carbonyl, thiocarbonyl, or nitrogen, other than as nitro
or nitroso.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
27.23
Carbonyl, thiocarbonyl, additional hetero ring or nitrogen,
other than as nitro or nitroso attached indirectly to the
sugar ring by acyclic nonionic bonding:
This subclass is indented under subclass 27.21. Compounds
wherein thiocarbonyl, carbonyl, nitrogen, other than as nitro
or nitroso, or an additional hetero ring is attached
indirectly to the sugar ring of the nucleoside by acyclic
nonionic bonding.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
27.3
Adenosyl:
This subclass is indented under subclass 27.23. Compounds
wherein the bicyclic ring system is adenine (6-aminopurine).
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
27.31
S-Adenosyl-L-methionine, S-Adenosyl-L-homocysteine, salts, or
esters thereof:
This subclass is indented under subclass 27.3. A compound
which is S-Adenosyl-L-methionine, S-Adenosyl-L-homocysteine,
a salt thereof or an ester thereof.
(1) Note. Examples of compounds provided for herein are:
[figure] [figure] [caption]p-Toluene sulfonate of
s-adenosyl-L-methionine
Subclass:
27.4
Arabinose is sugar moiety:
This subclass is indented under subclass 27.21. Compounds
wherein the sugar ring is arabinose.
(1) Note. Arabinose is a pentose sugar. Arabinose and
ribose are epimers (isomers) which differ in the
configuration around carbon number 2.
(2) Note. An example of a compound provided for herein is:
[figure]
Subclass:
27.5
Ketose is sugar moiety (e.g., decoyinine, psicofuranosyl
purines, etc.):
This subclass is indented under subclass 27.21. Compounds
wherein the sugar moiety is a ketose.
(1) Note. A ketose is a sugar containing a ketone group
when represented in straight chain form, and which forms a
hemiketal in furanoside form.
(2) Note. Examples of compounds provided for herein are:
[figure] [caption]decoyinine [figure]
[caption]6-amino-9-psicofuranosylpurine
Subclass:
27.6
Nitrogen, other than nitro or nitroso, bonded directly to the
6-position of a purine ring system (e.g., adenosine, etc.):
This subclass is indented under subclass 27.21. Compounds
wherein a nitrogen, other than as nitro or nitroso, is bonded
directly to the 6-position of a purine ring system.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
27.61
Additional nitrogen bonded directly to the 2-position of the
purine ring system:
This subclass is indented under subclass 27.6. Compounds
wherein the 2-position of the purine ring system has an
additional nitrogen substituent bonded directly thereto.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
27.62
Nitrogen, chalcogen, or additional carbon bonded directly to
the 6-position nitrogen (e.g., 6-position nitrogen is
substituted, etc.):
This subclass is indented under subclass 27.6. Compounds
wherein chalcogen (i.e., oxygen, sulfur, selenium, or
tellurium), nitrogen, or additional carbon is bonded directly
to the 6-position nitrogen.
(1) Note. Examples of compounds provided for herein are:
[figure] [figure]
Subclass:
27.63
Halogen, chalcogen, or cyano bonded directly to the
2-position of the purine ring system:
This subclass is indented under subclass 27.62. Compounds
wherein chalcogen (i.e., oxygen, sulfur, selenium, or
tellurium), cyano, or halogen is bonded directly to the
2-position of the purine ring system.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
27.7
Chalcogen, halogen, or benzene bonded directly to carbon of
the purine ring system (e.g., isoguanosine,
2-fluoroadenosine, etc.):
This subclass is indented under subclass 27.6. Compounds
wherein benzene, chalcogen (i.e., oxygen, sulfur, selenium,
or tellurium), or halogen is bonded to a carbon of the purine
ring system.
(1) Note. An example of a compound provided for herein is:
[figure] [figure]
Subclass:
27.8
Chalcogen bonded directly to the 6- or 2-position of a purine
ring system (e.g., inosine, etc.):
This subclass is indented under subclass 27.21. Compounds
wherein chalcogen (i.e., oxygen, sulfur, selenium, or
tellurium) is bonded directly to the 2-position or the
6-position of the purine ring system.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
27.81
Nitrogen, other than nitro or nitroso, bonded directly to the
2-position of the purine ring system (e.g., guanosine,
etc.):
This subclass is indented under subclass 27.8. Compounds
wherein nitrogen, other than nitro or nitroso, is bonded
directly to the 2-position carbon of the diazine ring in the
purine ring system.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
28.1
N-glycosides wherein the N is part of a six-membered hetero
ring (e.g., diazines, etc.):
This subclass is indented under subclass 22.1. Compounds
which are N-glycosides wherein the N of the N-glycoside
moiety is part of a six-membered nitrogen containing hetero
ring.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
28.2
Multideoxy or didehydro:
This subclass is indented under subclass 28.1. Compounds
wherein two or more -OH groups which would normally be
attached to the sugar ring have been replaced by hydrogen or
by another chemical group.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
28.3
The N-hetero ring is a triazine ring, including hydrogenated
(e.g., 6-azauridine, etc.):
This subclass is indented under subclass 28.1. Compounds
wherein the N-hetero ring has exactly three nitrogens and
three carbons.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
28.4
The N-hetero ring is a 1,3-diazine ring, including
hydrogenated (e.g., pyrimidines, etc.):
This subclass is indented under subclass 28.1. Compounds
wherein the N-hetero ring is a 1,3-diazine ring which may be
hydrogenated.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
28.5
Nitrogen, other than nitro or nitroso, bonded directly to the
4-position, and chalcogen bonded directly to the 2-position
of the diazine ring (e.g., cytidines, etc.):
This subclass is indented under subclass 28.4. Compounds
wherein nitrogen, other than nitro or nitroso, is bonded
directly to the 4-position and chalcogen (i.e., oxygen,
sulfur, selenium or tellurium) is bonded directly to the
2-position of the diazine ring.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
28.51
Having chalcogen, carbonyl, or thiocarbonyl bonded directly
to the 4-position substituent nitrogen:
This subclass is indented under subclass 28.5. Compounds
wherein carbonyl, thiocarbonyl, or chalcogen (i.e., oxygen,
sulfur, selenium, or tellurium) is bonded directly to the
4-position substituent nitrogen.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
28.52
Halogen or alkyl group of 1-5 carbon atoms bonded directly to
the 5-position of the diazine ring:
This subclass is indented under subclass 28.5. Compounds
wherein an alkyl group of 1-5 carbon atoms or halogen is
bonded directly to the 5-position carbon of the diazine
ring.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
28.53
Chalcogen bonded directly to the 2- and 4-positions of the
diazine ring (e.g., uridine, etc.):
This subclass is indented under subclass 28.4. Compounds
wherein chalcogen (i.e., oxygen, sulfur, selenium, or
tellurium) is bonded directly to the 2- and 4-positions of
the diazine ring.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
28.54
Alkyl, or substituted alkyl, bonded directly to the
5-position of the diazine ring (e.g., thymidine, 5-methyl
uridine, etc.):
This subclass is indented under subclass 28.53. Compounds
wherein an alkyl group, or a substituted alkyl group, is
bonded directly to the 5-position of the diazine ring.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
28.55
Halogen bonded directly to the 5-position of the diazine ring
(e.g., 5-fluorouridine, etc.):
This subclass is indented under subclass 28.53. Compounds
wherein halogen is bonded directly to the 5-position of the
diazine ring.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
28.6
N-glycosides wherein the N is part of a five-membered hetero
ring (e.g., selenazole nucleosides, pyrrole nucleosides,
etc.):
This subclass is indented under subclass 22.1. Compounds
which are N-glycosides wherein the N of the N-glycoside
moiety is part of a five-membered nitrogen containing hetero
ring.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
28.7
Plural nitrogens in the N-hetero ring (e.g., triazoles,
etc.):
This subclass is indented under subclass 28.6. Compounds
wherein the N-hetero ring contains plural nitrogens.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
28.8
The N-hetero ring is a 1,3-diazole ring, including
hydrogenated (e.g., imidazoles, etc.):
This subclass is indented under subclass 28.7. Compounds
wherein the N-hetero ring is a 1,3-diazole ring which may be
hydrogenated.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
28.9
Benzimidazoles:
This subclass is indented under subclass 28.8. Compounds
wherein the N-hetero ring is part of a benzimidazole ring
system.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
29.1
Nitrogen of N-glycoside is acyclic nitrogen:
This subclass is indented under subclass 22.1. Compounds
wherein the nitrogen of the N-glycoside is acyclic nitrogen
(is not part of cyclic structure).
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
29.11
N-hetero ring bonded directly or indirectly to the acyclic
nitrogen:
This subclass is indented under subclass 29.1. Compounds
wherein a nitrogen containing hetero ring is bonded directly
or indirectly to the acyclic nitrogen of the N-glycoside.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
29.12
The acyclic nitrogen is part of a urea or thiourea group:
This subclass is indented under subclass 29.1. Compounds
wherein the acyclic nitrogen of the N-glycoside is part of a
urea or a thiourea group.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
29.13
Sulfur containing (e.g., sulfides, sulfones, sulfates,
sulfonamides, etc.):
This subclass is indented under subclass 29.1. Compounds
which contain sulfur.
(1) Note. An example of a compound provided for herein is:
[figure]
Subclass:
29.2
C-glycosides wherein the sugar ring is bonded directly to
carbon of an N-hetero ring (e.g., 9-deazaadenosines, etc.):
This subclass is indented under subclass 18.7. Compounds
which are glycosidic derivatives of the cyclic forms of
sugars in which the aglycone portion includes an N-hetero
ring, which hetero ring is attached through ring carbon to
the sugar moiety by substituting it for the hemiacetal
hydroxyl of the sugar.
(1) Note. Examples of compounds provided for herein are:
[figure]
Subclass:
30
This subclass is indented under subclass 18.7. Compounds
which are nitrogen containing derivatives of repeating
glucose units, which units have the following structure:
[figure]
Subclass:
31
This subclass is indented under subclass 30. Compounds which
include a heterocyclic ring having nitrogen as a ring
member.
Subclass:
32
This subclass is indented under subclass 30. Compounds which
result from the reaction of a hydroxyl group of cellulose
with an acid.
(1) Note. The esterifying acid may include nitrogen and may
be organic or inorganic.
(2) Note. This subclass does not provide for compounds
formed when the sole acid entering into the formation is a
halogen.
Subclass:
33
This subclass is indented under subclass 32. Compounds in
which the acid moiety contains sulfur.
Subclass:
34
This subclass is indented under subclass 32. Compounds in
which the acid moiety contains phosphorus.
Subclass:
35
This subclass is indented under subclass 32. Compounds in
which the acid is nitric acid, and the resulting compound
contains the -NO[subscrpt]3[end subscrpt] radical.
Subclass:
36
This subclass is indented under subclass 35. Compounds which
contain, in addition to the -NO[subscrpt]3[end subscrpt]
radical, adiverse esterifying acid radical.
Subclass:
37
This subclass is indented under subclass 35. Processes in
which cellulose undergoes a physical or chemical treatment
prior to the nitration step.
Subclass:
38
This subclass is indented under subclass 35. Processes in
which cellulose nitrate is purified, recovered, separated,
altered physically; or treated chemically wherein the primary
intent is merely to modify a property of cellulose nitrate.
(1) Note. The processes herein may combine producing the
nitrated cellulose with a subsequent treatment or may merely
treat already formed cellulose nitrate.
Subclass:
39
This subclass is indented under subclass 38. Processes which
include physically subdividing units of cellulose nitrate to
form smaller particles.
(1) Note. The processes of this subclass include formation
or treatment in addition to the comminuting.
SEE OR SEARCH CLASS:
241, Solid Material Comminution or Disintegration, for
comminuting, per se.
Subclass:
40
This subclass is indented under subclass 38. Processes in
which nitrated cellulose is recovered from photos:graphic
film.
Subclass:
41
This subclass is indented under subclass 38. Processes
wherein the flow resistance or amount of polymerization of
nitrated cellulose is altered.
Subclass:
42
This subclass is indented under subclass 38. Processes for
increasing the physical or chemical stability of cellulose
nitrate.
Subclass:
43
This subclass is indented under subclass 30. Compounds which
have the general formula ROR', wherein RO is the cellulose
residue moiety and R' is an organic radical.
(1) Note. Nitrogen containing cellulose ethers are made by
substituting and organic radical for the hydrogen atom of a
portion of the hydroxyl groups of cellulose.
(2) Note. The attached organic radical R' is referred to as
the etherifying radical.
Subclass:
44
This subclass is indented under subclass 43. Compounds which
contain at least two diverse organic radicals attached via
ether linkages to the cellulose residue moiety.
Subclass:
45
This subclass is indented under subclass 18.7. Compounds
which have amylose and amylopectin as their two main
components.
(1) Note. Starches are heterogeneous in that the amylose
and amylopectin occur in different rations to each other.
(2) Note. Starches yield dextrins upon extensive thermal or
acid degradation and yield glucose upon complete hydrolysis.
Subclass:
46
This subclass is indented under subclass 45. Compounds which
are any nitrogen containing derivatives of various gummy
polysaccharides produced by thermal or acid degradation of
starch.
(1) Note. Dextrins are carbohydrates, intermediate between
starch and sugars. Degradation of dextrins yields maltose and
glucose.
(2) Note. For classification here the nitrogen containing
derivatives of dextrin have to be gummy polysaccharides;
sugars are not provided for herein.
Subclass:
47
This subclass is indented under subclass 45. Compounds which
result from reacting starch with a reagent having at least
two functional groups which link together starch molecules,
usually via ether or ester linkages between hydroxyls of said
molecule.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 48+ for nitrogen containing starch esters that
are not cross-linked.
50 for nitrogen containing starch ethers that are not
cross-linked.
Subclass:
48
This subclass is indented under subclass 45. Compounds which
result from the reaction of a hydroxyl group of a nitrogen
containing starch derivative with an acid.
(1) Note. The esterifying acid may be organic or
inorganic.
(2) Note. This subclass does not provide for compounds
formed when the sole acid moiety entering into the formation
is a halogen.
SEE OR SEARCH THIS CLASS, SUBCLASS:
47 for nitrogen containing starch esters that are
cross-linked.
Subclass:
49
This subclass is indented under subclass 48. Compounds which
(1) additionally contain an ether moiety or (2) contain a
plurality of diverse ester radicals.
(1) Note. The ether moiety may exist (1) independently of
the ester moiety, as in nitrogen containing ethyl starch
acetate, (2) by connection to the starch via an intervening
ester linkage as in a nitrogen containing starch
ethoxyacetate, or (3) by direct connection to the starch with
the ester moiety connected to the ether moiety as in a a
nitrogen containing acetoxyethyl starch.
Subclass:
50
This subclass is indented under subclass 45. Compounds which
have the general formula ROR', wherein RO is the starch
residue moiety and R' is an organic radical.
(1) Note. Nitrogen containing starch ethers can be made by
substituting an organic radical for the hydrogen atom of a
portion of the hydroxyl groups of a starch.
(2) Note. The attached organic radical R' is referred to as
the etherifying radical.
SEE OR SEARCH THIS CLASS, SUBCLASS:
47 for nitrogen containing starch ethers that are
cross-linked.
Subclass:
51
This subclass is indented under subclass 18.7. Compounds
which are high molecular weight polysaccharides containing
D-glucose units linked predominately -D (16).
(1) Note. Dextrans yield only glucose on hydrolysis but
differ otherwise from starch and glycogen as in molecular
structure, etc.
(2) Note. Dextrans are usually a group of compounds
differing according to the bacteria used to ferment the
sugar.
(3) Note. Controlled hydrolysis of native dextran yields
clinical dextran of lower molecular weight which is useful as
a blood plasma substitute.
Subclass:
52
This subclass is indented under subclass 18.7. Compounds
which are exudations of plants produced to cover wounds and
prevent attack by micro-organisms and are highly branched
polysaccharides composed of two or more monosaccharides.
Subclass:
53
This subclass is indented under subclass 18.7. Compounds
which contain a carbon atom to which nitrogen is directly
bonded and to which oxygen is directly attached by a double
bond.
(1) Note. This subclass provides for compounds having, for
example, the group: [figure]
Subclass:
54
This subclass is indented under subclass 18.7. Compounds
which contain sulfur in addition to nitrogen.
Subclass:
55
This subclass is indented under subclass 18.7. Compounds
which contain two or more atoms of nitrogen.
Subclass:
55.1
Polysaccharides:
This subclass is indented under subclass 55. Products wherein
the nitrogen containing carbohydrate consists of two or more
sugar moieties.
Subclass:
55.2
Glucosamine containing:
This subclass is indented under subclass 18.7. Compounds
which include an amine of glucose of the formula (below) and
derivatives thereof. [figure]
Subclass:
55.3
Processes:
This subclass is indented under subclass 18.7. Processes
which are directed to the preparation, purification,
recovery, stabilization or treatment in any way of nitrogen
containing derivatives of carbohydrates.
Subclass:
56
This subclass is indented under subclass 1.1. Compounds which
consist of repeating glucose units having the following
structure:
SEE OR SEARCH THIS CLASS, SUBCLASS:
30 for nitrogen containing cellulose derivatives.
Subclass:
57
This subclass is indented under subclass 56. Compounds which
are formed by changing a cellulose derivative back to
cellulose.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 60+ for cellulose xanthate or viscose which is
utilized to make regenerated cellulose.
Subclass:
58
This subclass is indented under subclass 56. Compounds which
result from the reaction of a hydroxyl group of cellulose
with an acid.
(1) Note. The esterifying acid may be organic or
inorganic.
(2) Note. This subclass does not provide for compounds
formed when the sole acid function entering into the
formation is a halogen.
SEE OR SEARCH THIS CLASS, SUBCLASS:
32 for nitrogen containing cellulose esters.
Subclass:
59
This subclass is indented under subclass 58. Compounds in
which the acid moiety contains sulfur.
SEE OR SEARCH THIS CLASS, SUBCLASS:
33 for nitrogen containing cellulose esters in which the
acid moiety contains sulfur.
Subclass:
60
This subclass is indented under subclass 59. Compounds which
are cellulose derivatives that include the group: [figure]
(1) Note. The viscose process is based on the reaction of
carbon disulfide with the sodium salt of cellulose to yield a
xanthate, which forms a viscous colloidal solution in dilute
aqueous alkali. This subclass provides for the colloidal
solution as well as the cellulose xanthate. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
57 for regenerated cellulose.
Subclass:
61
This subclass is indented under subclass 60. Compounds in
which cellulose xanthate or viscose is purified, recovered,
separated, altered physically; or treated chemically wherein
the primary intent is merely to modify a property of the
product.
(1) Note. Merely forming viscose from the xanthate is not
considered a subsequent treatment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
57 for regenerated cellulose.
Subclass:
62
This subclass is indented under subclass 58. Compounds in
which the acid moiety contains phosphorus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
34 for nitrogen containing cellulose esters in which the
acid moiety contains a phosphorus.
Subclass:
63
This subclass is indented under subclass 58. Compounds in
which the acid moiety is a carboxylic acid.
Subclass:
64
This subclass is indented under subclass 63. Compounds which
contain at least two diverse carboxylic acid moieties.
(1) Note. This subclass provides for stearyl cellulose
acetate, for example.
Subclass:
65
This subclass is indented under subclass 64. Compounds in
which at least one of the carboxylic acid moieties is a
propionate, butyrate or isobutyrate radical.
Subclass:
66
This subclass is indented under subclass 63. Compounds which
additionally contain an ether moiety.
(1) Note. The ether moiety may exist (1) independently of
the ester moiety as in ethyl cellulose acetate, (2) by
connection to the cellulose via an intervening ester linkage,
as in cellulose ethoxy acetate, or (3) by direct connection
to the cellulose with the ester radical connected to the
ether radical as in acetoxyethyl cellulose.
Subclass:
67
This subclass is indented under subclass 63. Compounds in
which the carboxylic acid moiety is the formate radical.
Subclass:
68
This subclass is indented under subclass 63. Compounds in
which the carboxylic acid moiety is either the propionate,
butyrate or isobutyrate radical.
Subclass:
69
This subclass is indented under subclass 63. Compounds in
which the carboxylic acid moiety is the acetate radical.
Subclass:
70
This subclass is indented under subclass 69. Processes in
which cellulose undergoes a physical or chemical treatment
prior to the formation of the acetate ester.
Subclass:
71
This subclass is indented under subclass 70. Processes in
which acetic acid is used in the pretreatment.
(1) Note. In these processes acetic acid is employed in the
pretreatment in addition to the acetic acid or acetic
anhydride used to form the acetate.
Subclass:
72
This subclass is indented under subclass 71. Processes in
which a halogen containing compound is employed in the
pretreatment of the cellulose or in the formation of the
cellulose acetate.
Subclass:
73
This subclass is indented under subclass 71. Processes
wherein a sulfur containing compound is also used in the
pretreatment.
Subclass:
74
This subclass is indented under subclass 70. Processes in
which a sulfur containing compound is used in the
pretreatment.
Subclass:
75
This subclass is indented under subclass 70. Processes in
which a compound containing a halogen is employed in the
pretreatment of the cellulose or in the formation of the
cellulose acetate.
Subclass:
76
This subclass is indented under subclass 69. Processes in
which cellulose acetates are purified, recovered, separated,
altered physically; or treated chemically wherein the primary
intent is merely to modify a property of the cellulose
acetate.
Subclass:
77
This subclass is indented under subclass 76. Processes which
include physically subdividing units of the compound to form
smaller particles or subjecting the compound to centrifugal
force.
SEE OR SEARCH CLASS:
241, Solid Material Comminution or Disintegration, for
comminuting, per se.
Subclass:
78
This subclass is indented under subclass 76. Processes in
which cellulose acetate is recovered from photos:graphic
film.
Subclass:
79
This subclass is indented under subclass 76. Processes which
result in the inhibition or reduction of the corrosive
properties of cellulose acetates.
Subclass:
80
This subclass is indented under subclass 76. Processes
wherein the flow resistance or amount of polymerization is
altered.
Subclass:
81
This subclass is indented under subclass 76. Processes
whereby the physical or chemical stability of cellulose
acetate is increased.
Subclass:
82
This subclass is indented under subclass 76. Processes in
which a halogen containing compound is utilized in the
subsequent treatment or in the formation of cellulose
acetate.
Subclass:
83
This subclass is indented under subclass 69. Processes in
which a halogen containing compound is utilized in the
formation of cellulose acetate.
SEE OR SEARCH THIS CLASS, SUBCLASS:
72 and 75, for a process of making cellulose acetate which
includes a pretreatment wherein a halogen containing compound
is utilized in pretreating the cellulose or in forming the
cellulose acetate.
82 for a process which includes subsequent treatment of
cellulose acetate and the use of a halogen containing
compound in the subsequent treatment or in the formation of
the cellulose acetate.
Subclass:
84
This subclass is indented under subclass 56. Compounds having
the general formula ROR', wherein RO- is the cellulose
residue moiety and R' is an organic radical.
(1) Note. Cellulose ethers are made by substituting an
organic radical for the hydrogen atom of a portion of the
hydroxyl groups of cellulose.
(2) Note. The attached organic radical R' is referred to as
the etherifying radical.
SEE OR SEARCH THIS CLASS, SUBCLASS:
43 for nitrogen containing cellulose ethers.
Subclass:
85
This subclass is indented under subclass 84. Processes in
which a cellulose ether is purified, recovered, separated,
altered physically; or treated chemically wherein the primary
intent is merely to modify a property of the cellulose
ether.
(1) Note. The processes herein may combine producing the
cellulose ether with a subsequent treatment or may merely
treat an already formed cellulose ether.
(2) Note. This subclass does not generally provide for
processes wherein the intent is to make a derivative of the
cellulose ether. However, cross-linking processes are
included here as well as processes wherein the purpose is
merely to modify a property of the cellulose ether, even when
some derivatizing occurs.
SEE OR SEARCH THIS CLASS, SUBCLASS:
43 for subsequent treatment of nitrogen containing cellulose
ether derivatives.
Subclass:
86
This subclass is indented under subclass 85. Processes which
include physically subdividing units of the compound to form
smaller particles.
(1) Note. This subclass provides for grinding, pulverizing,
shearing, etc.
(2) Note. The processes of this subclass include formation
or treatment in addition to the comminuting.
SEE OR SEARCH CLASS:
241, Solid Material Comminution or Disintegration, for
comminuting, per se.
Subclass:
87
This subclass is indented under subclass 85. Processes which
include altering the interworking characteristics of the
compound with liquids.
Subclass:
88
This subclass is indented under subclass 85. Processes
wherein the flow resistance, amount of polymerization, or
high temperature stability is altered.
Subclass:
89
This subclass is indented under subclass 85. Processes
wherein an organic acid or an inorganic acid is employed in
the subsequent treatment.
Subclass:
90
This subclass is indented under subclass 84. Compounds which
contain at least two diverse organic radicals attached via
ether linkages to the cellulose residue moiety.
(1) Note. This subclass provides for methyl benzyl
cellulose, for example.
SEE OR SEARCH THIS CLASS, SUBCLASS:
44 for nitrogen containing mixed ethers of cellulose.
Subclass:
91
This subclass is indented under subclass 90. Compounds
wherein at least one of the radicals attached via the ether
linkage is a hydroxyalkyl radical.
Subclass:
92
This subclass is indented under subclass 84. Compounds
wherein the etherifying radical contains sulfur.
Subclass:
93
This subclass is indented under subclass 84. Compounds
wherein the etherifying radical contains a double or triple
bond.
Subclass:
94
This subclass is indented under subclass 93. Compounds
wherein an etherifying radical contains a benzene ring.
Subclass:
95
This subclass is indented under subclass 84. Compounds
wherein the etherifying radical is a hydoxyalkyl radical.
Subclass:
96
This subclass is indented under subclass 95. Compounds
wherein the hydroxyalkyl is hydroxyethyl.
Subclass:
97
This subclass is indented under subclass 84. Compounds
wherein the etherifying radical is the carboxyalkyl radical
or a salt thereof.
Subclass:
98
This subclass is indented under subclass 97. Compounds
wherein the etherifying radical is the carboxymethyl radical
or a salt thereof.
Subclass:
99
This subclass is indented under subclass 84. Compounds
wherein the etherifying radical is an alkyl or cycloalkyl
radical.
Subclass:
100
This subclass is indented under subclass 99. Compounds
wherein the ehterifying radical is the ethyl radical.
Subclass:
101
This subclass is indented under subclass 56. Compounds which
include metal.
Subclass:
102
This subclass is indented under subclass 1.1. Compounds which
have amylose and amylopectin as their two main components,
and derivatives of such compounds.
(1) Note. Starches are heterogeneous in that the amylose
and amylopectin occur in different ratios to each other.
(2) Note. Starches yield dextrins upon extensive
degradation and yield glucose upon complete hydrolysis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
45 for nitrogen containing derivatives of starch.
Subclass:
103
This subclass is indented under subclass 102. Compounds which
are any of various gummy polysaccharides produced by thermal
or acid degradation of starch, and derivatives of such
compounds.
(1) Note. Dextrins are carbohydrates, intermediate between
starch and sugars. Degradation of dextrins yields maltose and
glucose.
(2) Note. Derivatives of dextrins which remain gummy
polysaccharides are classified herein; however, sugars are
not provided for here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46 for nitrogen containing dextrin derivatives.
Subclass:
104
This subclass is indented under subclass 102. Compounds which
result from a chemical reaction between starch, or a
derivative thereof, and a reactant containing the functional
group and derivatives of such compounds. [figure]
Subclass:
105
This subclass is indented under subclass 102. Compounds which
result from reacting starch or a derivative thereof, with an
oxidizing reagent, and derivatives of such compounds.
Subclass:
106
This subclass is indented under subclass 102. Compounds which
result from reacting starch with a reagent having at least
two functional groups which link together starch molecules,
usually via ether or ester linkage between hydroxyls of said
molecules.
SEE OR SEARCH THIS CLASS, SUBCLASS:
47 for nitrogen containing cross-linked starch
derivativess.
107 for starch esters that are not cross-linked.
111 forstarch ethers that are not cross- linked.
Subclass:
107
This subclass is indented under subclass 102. Compounds which
result from the reaction of a hydroxyl group of a starch with
an acid.
(1) Note. The esterifying acid may be organic or
inorganic.
(2) Note. This subclass does not provide for compounds
formed when the sole acid function entering into the
formation is a halogen.
SEE OR SEARCH THIS CLASS, SUBCLASS:
47 for nitrogen containing starch molecules connected via
ester linkage.
48 for nitrogen containing starch esters.
106 for starch esters that are cross-linked.
Subclass:
108
This subclass is indented under subclass 107. Compounds which
(1) additionally contain an ether moiety, or (2) contain at
least two diverse ester moieties.
(1) Note. The ether moiety may exist (1) independently of
the ester moiety as in ehtyl starch acetate, (2) connection
to the starch via an intervening ester linkage as in starch
ethoxyacetate, or (3) by direct connection to the starch with
the ester moiety connected to the ether moiety as in
acetoxyethyl starch.
Subclass:
109
This subclass is indented under subclass 107. Compounds which
include phosphorus or sulfer.
Subclass:
110
This subclass is indented under subclass 107. Compounds
wherein the acid reactant contains a carboxylic acid group
[figure]
Subclass:
111
This subclass is indented under subclass 102. Compounds
having the general formula ROR', wherein RO- is the starch
residue moiety and R' is an organic radical.
(1) Note. Starch ethers are made by substituting an organic
radical for the hydrogen atom of a portion of the hydroxyl
groups of starch.
(2) Note. The attached organic radical R' is referred to as
the etherifying radical.
SEE OR SEARCH THIS CLASS, SUBCLASS:
47 for nitrogen containing starch molecules connected via
ether linkage.
50 for nitrogen containing starch ethers.
106 for starch ethers that are cross-linked.
Subclass:
112
This subclass is indented under subclass 1.1. Compounds which
are high molecular weight polysaccharides containingD-glucose
units linked predominately -D (16).
(1) Note. Dextrans yield only glucose on hydrolysis but
differ otherwise from starch and glycogen as in molecular
structure, etc.
(2) Note. Dextrans are actually a group of compounds
differing according to the bacteria used to ferment the
sugar.
(3) Note. Controlled hydrolysis of native detran yields
clinical dextran of lower molecular weight which is useful as
a blood plasma substitute.
SEE OR SEARCH THIS CLASS, SUBCLASS:
51 for nitrogen containing dextran derivatives.
Subclass:
113
This subclass is indented under subclass 112. Compounds which
include iron.
Subclass:
114
This subclass is indented under subclass 1.1. Compounds which
are exudations of plants produced to cover wounds and prevent
attack by micro-organisms and are highly branched
polysaccharides composed of two or more monosaccharides.
SEE OR SEARCH THIS CLASS, SUBCLASS:
52 for nitrogen containing gums.
Subclass:
115
This subclass is indented under subclass 1. Compounds which
result from the reaction of a hydroxyl group of a
carbohydrate with an acid.
(1) Note. The esterifying acid may be organic or
inoraganic.
(2) Note. This subclass does not provide for compounds
formed when the sole acid function entering into the
formation is a halogen.
Subclass:
116
This subclass is indented under subclass 115. Compounds which
additionally contain an ether moiety.
(1) Note. Carbohydrate ethers are explained in the
definition and notes for subclass 120.
(2) Note. The ether moiety may exist (1) independently of
the ester moiety as in ethyl sucrose acetate, (2) by
connection to the carbohydrate via an intervening ester
linkage as in sucrose ethoxyacetate, or (3) by direct
connection to the carbohydrate with the ester moiety
connected to the ether moiety as in acetoxyethyl sucrose.
Subclass:
117
This subclass is indented under subclass 115. Compounds which
include phosphorus.
Subclass:
118
This subclass is indented under subclass 115. Compounds which
include sulfur.
Subclass:
119
This subclass is indented under subclass 115. Compounds
wherein the esterifying acid is carboxylic acid.
Subclass:
120
This subclass is indented under subclass 1.1. Compounds
having the general formula ROR', wherein RO- is the
carbohydrate residue moiety and R' is an organic radical.
(1) Note. Carbohydrate ethers can be made by subsituting an
organic radical for the hydrogen atom of a portion of the
hydroxyl groups of a carbohydrate.
(2) Note. The organic radical R' may also be a carbohydrate
moiety.
Subclass:
121
This subclass is indented under subclass 1.1. Compounds which
include metal.
(1) Note. For the purpose of this subclass arsenic is
considered to be a metal while silicon, selenium, and
tellurium are not metals.
Subclass:
122
This subclass is indented under subclass 1.1. Compounds which
include sulfur, fluorine, chlorine, bromine, iodine or
astatine.
Subclass:
123
Plural diverse saccharides containing (e.g.,
heteropolysaccarides, etc.):
This subclass is indented under subclass 1.1. Products which
contain three or more sugar moieties, at least two of which
are different.
(1) Note. Included in this subclass are products referred
to as conplex polysaccharides.
Subclass:
123.1
Polysaccharides:
This subclass is indented under subclass 1.11. Compounds
which are polymers containing a sugar ring as the monomeric
unit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
114 for polysaccharides that are gums (e.g., plant exudates,
etc.).
123 for heteropolysaccharides and complex saccharides.
Subclass:
123.12
Glucans (e.g., pullulan, etc.):
This subclass is indented under subclass 123.1. Compounds
which are polymers of D-glucopyranose.
Subclass:
123.13
Disaccharides (e.g., maltose, sucrose, lactose, formaldehyde
lactose, etc.):
This subclass is indented under subclass 123.1. Compounds
which contain exactly two monosaccharides units covalently
bonded to each other.
(1) Note. An example of a compound provided for herein is
sucrose: [figure]
Subclass:
124
Processes:
This subclass is indented under subclass 1.1. Processes which
are directed to the preparation, purification, recovery,
stabilization, or treatment in any way of carbohydrates or
derivatives of carbohydrates.
Subclass:
125
Isomerization:
This subclass is indented under subclass 124. Processes
wherein a carbohydrate is prepared by transformation or
rearrangement of the elements of a starting compound without
adding or taking away any element.
Subclass:
126
Polymerization:
This subclass is indented under subclass 124. Processes
wherein a carbohydrate is prepared by a reaction wherein two
or more molecules of the same sugar combine.
Subclass:
127
Purification or recovery:
This subclass is indented under subclass 124. Process which
include separating a carbohydrate from impurities or from the
reaction mixture.
Subclass:
128
From plant material:
This subclass is indented under subclass 127. Processes
wherein a carbohydrate is separated or recovered from plant
material.
Information Products Division -- Contacts
Questions regarding this report should be directed to:
U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231
tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov
Last Modified: 6 October 2000