Manual of U.S. Patent Classification
as of June 30, 2000

Class
436
CHEMISTRY: ANALYTICAL AND IMMUNOLOGICAL TESTING

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

Patents classified in a subclass may be accessed by clicking on the " " icon following the subclass number, below.

( please note that links to definitions and classified patents may not be available for some classes and subclasses )

For search strategies, please refer to the Classification Index Explanation of Data web page.

Subclass		Title
ClassTitle		===> CHEMISTRY: ANALYTICAL AND IMMUNOLOGICAL TESTING
500		THYROID HORMONE TESTS (E.G., T3, T4, TBG, TSH, ETC.)
501		BIOSPECIFIC LIGAND BINDING ASSAY
503		. Utilizing isolate of tissue or organ as binding agent
504		. . Radioactive label
505		. . . B12 or folate
506		FOR PREEXISTING IMMUNE COMPLEX OR AUTO-IMMUNE DISEASE
507		. Immune complex
508		. Antinuclear (e.g., DNA, etc.)
509		. Rheumatoid factors
510		IMMUNOCHEMICAL PREGNANCY DETERMINATION
512		INVOLVING ANTIBODY FRAGMENTS
513		INVOLVING IgA, IgD, IgE, or IgM
514		INVOLVING DIFFUSION OR MIGRATION OF ANTIGEN OR ANTIBODY
515		. Through a gel (e.g., Ouchterlony technique, etc.)
516		. . Immunoelectrophoresis
517		INVOLVING KINETIC MEASUREMENT OF ANTIGEN-ANTIBODY REACTION
518		INVOLVING AN INSOLUBLE CARRIER FOR IMMOBILIZING IMMUNOCHEMICALS
519		. Carrier is a biological cell or cell fragment
520		. . Red blood cell
521		. . . Fixation or stabilization of red blood cells
522		. . . Lysis of red blood cell membrane
523		. Carrier is particulate and the particles are of intentionally different sizes or impregnated differently with the immunochemicals
524		. Carrier is inorganic
525		. . Metal or metal coated
526		. . . Magnetic
527		. . Glass or silica
528		. Carrier is organic
529		. . Polysaccharide, carrier (e.g., dextran, etc.)
530		. . . Cellulose or derivative
531		. . Carrier is synthetic resin
532		. . . Antigen or antibody attached to a carrier via bridging agent
533		. . . . Carrier is water suspendible particles (e.g., latex, etc.)
534		. . . Carrier is water suspendible particles
535		. . Antigen or antibody entrapped within the carrier (e.g., gel, hollow fiber, etc.)
536		INVOLVING IMMUNE COMPLEX FORMED IN LIQUID PHASE
537		. Signal modification or steric inhibition
538		. Separation of immune complex from unbound antigen or antibody
539		. . Involving precipitating reagent
540		. . . Double or second antibody
541		. . Absorbent column, particles or resin strip
542		. . Involving radioactive labeling
543		INVOLVING PRODUCING OR TREATING ANTIGEN OR HAPTEN
544		. Producing labeled antigens
545		. . Radioactive label
546		. . Fluorescent label
547		INVOLVING PRODUCTION OR TREATMENT OF ANTIBODY
548		. Monoclonal antibody
1		PROCESS OR COMPOSITION FOR STERILITY OR PACKAGE INTEGRITY TEST
2		PROCESS OR COMPOSITION FOR DETERMINATION OF PHYSICAL STATE OR PROPERTY BY MEANS INCLUDING A CHEMICAL REACTION
3		. Leak detection
4		. Of crystal or crystalline material
5		. Surface area, porosity, imperfection, or alteration
6		. Corrosion resistance or power
7		. By thermoparticulating composition
8		COMPOSITION FOR STANDARDIZATION, CALIBRATION, SIMULATION, STABILIZATION, PREPARATION OR PRESERVATION; PROCESSES OF USE IN PREPARATION FOR CHEMICAL TESTING
9		. Simulative of a gaseous composition
10		. Particle count or volume standard or control (e.g., platelet count standards, etc.)
11		. Blood gas standard or control
12		. Bilirubin or uric acid standard or control
13		. Lipid, cholesterol, or triglyceride standard or control
14		. Glucose, ketone, nitrate standard or control
15		. Protein or peptide standard or control (e.g., hemoglobin, etc.)
16		. Blood serum or blood plasma standard or control
17		. Preparation composition (e.g., lysing or precipitation, etc.)
18		. Preservative, buffer, anticoagulant or diluent
19		. Inorganic standards or controls
20		FOOD OR DAIRY PRODUCTS
21		. Meat or eggs
22		. Dairy product
23		. . Milk or butter fat
24		. Wine or alcoholic beverages
25		GEOCHEMICAL, GEOLOGICAL, OR GEOTHERMAL EXPLORATION
26		. For metallic ores
27		. Using chemical tracers
28		. In situ testing
29		. For petroleum oils or carbonaceous minerals
30		. . Removing and testing drilling mud or fluid
31		. . Removing and testing solid samples
32		. . . Analyzing evolved gas
33		. . . . Evolving gas by acidification
34		RATE OF REACTION DETERMINATION
35		USING ACTIVATED SPECIE
36		WITH USE OF CONDENSATION NUCLEI
37		TESTING OF CATALYST
38		PURITY OF STEAM OR CHEMICALLY INERT GAS
39		DETERMINATION OF WATER
40		. In petroleum oil, hydrocarbon oil or organic fluid
41		. By use of a cobalt, copper or nickel containing reagent
42		. By use of a Karl Fischer reagent
43		AUTOMATED CHEMICAL ANALYSIS
44		. Utilizing a moving indicator strip or tape
45		. Utilizing a centrifuge or compartmented rotor
46		. With sample on test slide
47		. With conveyance of sample along a test line in a container or rack
48		. . With step of insertion or removal from test line
49		. . With treatment or replacement of aspirator element (e.g., cleaning, etc.)
50		. Condition or time responsive
51		. . With automated titrator
52		. With a continuously flowing sample or carrier stream
53		. . With formation of a segmented stream
54		. With aspirator of claimed structure
55		CONDITION RESPONSIVE CONTROL
56		TRACERS OR TAGS
57		INCLUDING USE OF RADIOACTIVE PROPERTIES
58		. Dosage determination of high energy radiation, (e.g., use of an X-ray dosimeter, etc.)
59		. Including pyrolysis of radioactive material
60		LUBRICANT, GREASE, MINERAL OIL, HYDROCARBON OIL PRODUCT, OR FATS OR LIPIDS FOR OXIDATION (E.G., BREAKDOWN PRODUCTS OR CONTAMINATION, ETC.)
61		. Acidity, basicity or neutralization number
62		OXYGEN DEMAND (E.G., BOD, TOD, COD, ETC.)
63		BIOLOGICAL CELLULAR MATERIAL TESTED
64		CANCER
65		PREGNANCY OR OVULATION
66		HEMOGLOBIN, MYOGLOBIN, OR OCCULT BLOOD
67		. Glycosylated hemoglobin
68		BLOOD GAS (E.G., OXYGEN, CARBON DIOXIDE, BLOOD, pH, ETC.)
69		CLOTTING OR CLOTTING FACTOR LEVEL TESTS
70		SEDIMENTATION RATE OR HEMATOCRIT
71		LIPIDS, TRIGLYCERIDES, CHOLESTEROL, OR LIPOPROTEINS
72		SILICON CONTAINING
73		METAL OR METAL CONTAINING
74		. Present in biological fluids (e.g., blood, urine, etc.)
75		. Oxide or gas content of metal (e.g., determination of dissolved gases, etc.)
76		. Organometallic compound determined
77		. . Ge, Sn, Pb
78		. Presence of a component of steel
79		. Li, Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba, Ra
80		. Cu, Ag, Au
81		. Zn, Cd, Hg, Sc, Y, or Actinides, or Lanthanides
82		. . Lanthanide or Actinide
83		. Ti, Zr, Hf, Va, Nb, Ta, Cr, Mo, W
84		. Mn, Te, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
85		SYNTHETIC OR NATURAL RESIN
86		PEPTIDE, PROTEIN OR AMINO ACID
87		. Glycoproteins (e.g., hormone, etc.)
88		. . Albumin
89		. Amino acid or sequencing procedure
90		. . Alpha or beta amino acid
91		HETEROCYCLIC CARBON COMPOUND (I.E., O, S, N, Se, Te, AS ONLY RING HETERO ATOM)
92		. Diverse hetero atoms in same or different rings (e.g., alkaloids, opiates, etc.)
93		. Hetero-O (e.g., ascorbic acid, etc.)
94		. . Saccharide (e.g., DNA, etc.)
95		. . . Glucose
96		. Hetero-N
97		. . Bile pigment
98		. . Plural nitrogen in the same ring (e.g., barbituates, creatinine, etc.)
99		. . . Uric acid
100		INORGANIC ACID OR BASE (E.G., HCl, SULFURIC ACID, ETC.)
101		. Halogen containing
102		. Sulfur containing
103		PHOSPHORUS CONTAINING
104		. Organic (e.g., chemical warfare agents, insecticides, etc.)
105		. Of inorganic phosphorus compound in body fluid
106		NITROGEN CONTAINING
107		. N-Nitroso containing (e.g., nitrosamine, etc.)
108		. Urea or blood urea nitrogen
109		. Cyanide or isocyanide
110		. Nitrite or nitrate
111		. Amine and quaternary ammonium
112		. . Tertiary amine
113		. . Ammonia
114		. Total nitrogen determined
115		. . As part of an elemental analysis
116		. Oxides of nitrogen
117		. . Only nitrogen dioxide
118		. . Both nitrogen oxide and dioxide
119		SULFUR CONTAINING
120		. Organic or sulfhydryl containing (e.g., mercaptan, hydrogen, sulfide, etc.)
121		. . Only hydrogen sulfide
122		. Sulfur dioxide
123		. Total or elemental sulfur
124		HALOGEN CONTAINING
125		. In aqueous solution
126		. Carbon containing compound (e.g., vinylchloride, etc.)
127		OXYGEN CONTAINING
128		. Carbonyl, ether, aldehyde or ketone containing
129		. . Carboxylic acid
130		. . Formaldehyde or acetone
131		. Hydroxyl containing
132		. . Ethanol
133		. Inorganic carbon compounds
134		. . Carbon monoxide only
135		. Ozone or peroxide
136		. Molecular oxygen
137		. . Fuel/air mixture or exhaust gas analysis
138		. . Dissolved or trace oxygen or oxygen content of a sealed environment
139		HYDROCARBON
140		. Aromatic
141		. Acyclic (e.g., methane, octane, isoparaffin, etc.)
142		. . Unsaturated (e.g., ethylene, diene, etc.)
143		. Total hydrocarbon, flammability, combustibility (e.g., air-fuel mixture, etc.)
144		HYDROGEN, PER SE
145		CARBON CONTAINING
146		. In an aqueous solution (e.g., TOC, etc.)
147		MEASUREMENT INCLUDES TEMPERATURE CHANGE OF THE MATERIAL BEING ANALYZED (E.G., CALORIMETRY, ETC.)
148		MEASUREMENT INCLUDES CHANGE IN VOLUME OR PRESSURE
149		MEASUREMENT OF ELECTRICAL OR MAGNETIC PROPERTY OR THERMAL CONDUCTIVITY
150		. Of a liquid
151		. By means of a solid body in contact with a fluid
152		. . Solid body contains a combustion catalyst
153		. Of an ionized gas
154		. . Flame ionization
155		PYROLYSIS, COMBUSTION, OR ELEVATED TEMPERATURE CONVERSION
156		. Explosibility
157		. Multiple stages of heating or heating at multiple temperatures or application of temperature gradient
158		. Dividing or separating a sample stream
159		. With catalyst or accelerator
160		. Combustion with oxygen containing gas
161		INCLUDING CHROMATOGRAPHY
162		. Utilizing paper or thin layer plate
163		INCLUDING TITRATION OR pH DETERMINATION
164		OPTICAL RESULT
165		. With claimed manipulation of container to effect reaction or use of container of claimed optical structure
166		. Including reagent preparation
167		. Including gas absorption in liquid or solid
168		. . Liquid sorbent
169		. With reagent in absorbent or bibulous substrate
170		. . Plural superposed layers
171		. Spectrum analysis (e.g., flame photometry, etc.)
172		. With fluorescence or luminescence
173		NUCLEAR MAGNETIC RESONANCE, ELECTRON SPIN RESONANCE OR OTHER SPIN EFFECTS OR MASS SPECTROMETRY
174		INCLUDING SAMPLE PREPARATION
175		. Digestion or removing interfering materials
176		. Stabilizing or preserving
177		. Liberation or purification of sample or separation of material from a sample (e.g., filtering, centrifuging, etc.)
178		. . Including use of a solid sorbent, semipermeable membrane, or liquid extraction
179		. Dilution
180		. Volumetric liquid transfer
181		. Gaseous sample or with change of physical state
182		ELEMENT OR INORGANIC COMPOUND
183		MISCELLANEOUS
		******************************
		CROSS-REFERENCE ART COLLECTIONS RELATED TO ANTIGEN-ANTIBODY TESTS
		******************************
800		FLUORESCENT DYES (E.G., RHODAMINE, ETC.)
801		ELECTRON DENSE COMPOUNDS (E.G., FERRITIN, ETC.)
802		PROTEIN-BACTERIOPHAGE CONJUGATES
803		STABE FREE RADICALS (E.G., SPIN IMMUNOASSAY, ETC.)
804		RADIOISOTOPE (E.G., RADIOIMMUNOASSAY, ETC.)
805		OPTICAL PROPERTY
806		ELECTRICAL PROPERTY OR MAGNETIC PROPERTY
807		APPARATUS INCLUDED IN PROCESS CLAIM (E.G., PHYSICAL SUPPORT STRUCTURES, ETC.)
808		. Automated or kit
809		. Multifield plates or multicontainer arrays
810		. Tube, bottle, or dipstick
811		TEST FOR NAMED DISEASE, BODY CONDITION OR ORGAN FUNCTION
812		. Infectious mononucleosis
813		. Cancer
814		. Pregnancy
815		TEST FOR NAMED COMPOUND OR CLASS OF COMPOUNDS
816		. Alkaloids, amphetamines, and barbiturates
817		. Steroids or hormones
818		. . Human chorionic gonadotropin
819		MULTIFUNCTIONAL ANTIGEN OR ANTIBODY
820		HEPATITIS ASSOCIATED ANTIGENS AND ANTIBODIES
821		INVOLVING COMPLEMENT FACTORS OR COMPLEMENT SYSTEMS
822		IDENTIFIED HAPTEN
823		IMMUNOGENIC CARRIER OR CARRIER PER SE
824		IMMUNOLOGICAL SEPARATION TECHNIQUES
825		PRETREATMENT FOR REMOVAL OF INTERFERING FACTORS FROM SAMPLE
826		ADDITIVES (E.G., BUFFERS, DILUENTS, PRESERVATIVES)
827		LECTINS
828		PROTEIN A
829		LIPOSOMES (E.G., ENCAPSULATION, ETC.)
		******************************
		CROSS-REFERENCE ART COLLECTIONS
		RELATED TO CHEMICAL TESTING
		******************************
900		BREATH TESTING
901		DRUGS OF ABUSE (E.G., NARCOTICS, AMPHETAMINE, ETC.)
902		DOSIMETER
903		DIAZO REACTIONS
904		OXIDATION - REDUCTION INDICATORS
905		PHOTOCHEMICAL ACTIVATION OF REACTIONS
906		FERTILITY TESTS
907		FETAL LUNG MATURITY
908		GRAVIMETRIC ANALYSIS
909		NEPHELOMETRY
910		IRON-BINDING CAPACITY OF BLOOD

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Last Modified: 6 October 2000