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 [Search a list of Patent Appplications for class 552]   CLASS 552,ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
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SUBCLASSES

[List of Patents for class 552 subclass 1]    1Azides
 This subclass is indented under subclass 1.  Compounds under Class 532, ... , which contain the azide group.
(1) Note. The azide group has no single definite structure; it can be represented by different resonance forms, such as:

and

and

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(2) Note. For simplicity, the azide group shall be structurally depicted in the following definitions as:

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SEE OR SEARCH CLASS:

588, Hazardous or Toxic Waste Destruction or Containment,   subclass 408 for the chemical destruction of organic hazardous or toxic waste containing nitrogen.
  
[List of Patents for class 552 subclass 2]    2With preservative or stabilizer
 This subclass is indented under subclass 1.  Products wherein the azide is mixed with a stabilizing or preserving agent, whose sole function is to prevent physical or chemical change.
  
[List of Patents for class 552 subclass 3]    3Phoshorus attached directly or indirectly to the azide group by nonionic bonding
 This subclass is indented under subclass 1.  Compounds wherein the azide group is attached directly or indirectly to phosphorus by nonionic bonding.
(1) Note. Examples of compounds provided for herein are:

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[List of Patents for class 552 subclass 4]    4Silicon, boron, aluminum or heavy metal containing
 This subclass is indented under subclass 1.  Compounds which contain silicon, boron, aluminum or heavy metal.
(1) Note. Heavy metals are those whose specific gravity is greater than 4.00.
(2) Note. Arsenic is considered as a metal.
  
[List of Patents for class 552 subclass 5]    5Chalcogen or nitrogen bonded directly to the azide group (e.g., sulfonyl azides, etc.)
 This subclass is indented under subclass 1.  Compounds wherein the azide group is bonded directly to nitrogen or to chalcogen (i.e., oxygen, sulfur, selenium or tellurium).
(1) Note. Examples of compounds provided for herein are:

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[List of Patents for class 552 subclass 6]    6Having -C(=X)-, wherein X is chalcogen, bonded directly to the azide group
 This subclass is indented under subclass 1.  Compounds wherein the azide group is bonded directly to -C(=X)-, in which X is chalcogen (i.e., oxygen, sulfur, selenium or tellurium).
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 552 subclass 7]    7Chalcogen bonded directly to the -C(=X)- group
 This subclass is indented under subclass 6.  Compounds wherein the-C(=X)- group is also bonded directly to chalcogen.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 552 subclass 8]    8Benzene ring bonded directly to the azide group
 This subclass is indented under subclass 1.  Compounds wherein the azide group is bonded directly to a benzene ring.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 552 subclass 9]    9Cyclopentanohydrophenanthrene ring system containing
 This subclass is indented under subclass 1.  Compounds which contain the cyclopentanohydrophenanthrene ring system.
(1) Note. The cyclopentanohydrophenanthrene ring system is depicted by the following structure, in which at least one of the rings A, B and C is not a benzene ring:

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[List of Patents for class 552 subclass 10]    10Acyclic carbon bonded directly to the azide group
 This subclass is indented under subclass 1.  Compounds wherein the azide group is bonded directly to acyclic carbon.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 552 subclass 11]    11Nitrogen attached indirectly to the azide group by acyclic nonionic bonding (e.g., diazides, etc.)
 This subclass is indented under subclass 10.  Compounds wherein the azide group is attached indirectly to nitrogen by acyclic nonionic bonding.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 552 subclass 12]    12Having -C(=X)-, wherein X is chalcogen, attached indirectly to the azide group by acyclic nonionic bonding
 This subclass is indented under subclass 11.  Compounds in which the azide group is attached indirectly to -C(=X)-, wherein X is chalcogen (i.e., oxygen, sulfur, selenium or tellurium), by acyclic nonionic bonding.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 552 subclass 100]    100Acyclic carbon bonded directly to three benzene rings and to cyano (e.g., triphenylacetonitrile, etc.)
 This subclass is indented under subclass 1.  Compounds under Class 532, ... wherein three benzene rings and a cyano group are bonded to the same acyclic carbon.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 552 subclass 101]    101Acyclic carbon bonded directly to three benzene rings or to two benzene rings and a cyclohexadienyl ring, which acyclic carbon may not be bonded to a fourth carbon (e.g., triphenylmethane dyestuffs, etc.)
 This subclass is indented under subclass 1.  Compounds under Class 532, ... , wherein either (a) three benzene rings or (b) two benzene rings and a cyclohexadienyl ring are bonded directly to the same acyclic carbon, which acyclic carbon may not be bonded to a fourth carbon.
(1) Note. The triarylmethane dyestuffs are included within this subclass and its indents.
(2) Note. To be classified in this subclass, a compound must contain carbon, hydrogen, and at least one additional element; hydrocarbon triarylmethanes are classified in Class 585.
(3) Note. Examples of compounds provided for herein are:

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[List of Patents for class 552 subclass 102]    102With preservative or stabilizer
 This subclass is indented under subclass 101.  Products , wherein the compound is mixed with a stabilizing or preserving agent, whose sole function is to prevent physical or chemical change.
  
[List of Patents for class 552 subclass 103]    103Heavy metal or alumium containing
 This subclass is indented under subclass 101.  Compounds which contain aluminum or heavy metal.
(1) Note. Heavy metals are those whose specific gravity is greater than 4.00.
(2) Note. Arsenic is considered as a metal.
  
[List of Patents for class 552 subclass 104]    104Nitrogen, sulfur, phosphorus, or peroxy attached directly to the acyclic carbon by nonionic bonding
 This subclass is indented under subclass 101.  Compounds wherein the acyclic carbon is attached directly to nitrogen, sulfur, phosphorus or peroxy by nonionic bonding.
  
[List of Patents for class 552 subclass 105]    105The acyclic carbon and an additional carbon are bonded directly to the same oxygen (ethers, esters, etc.)
 This subclass is indented under subclass 101.  Compounds wherein the same oxygen is bonded both to the acyclic carbon and to an additional carbon.
(1) Note. Examples of compounds provided for herein are:

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[List of Patents for class 552 subclass 106]    106One of the rings, or a polycyclo ring system containing one of the rings, is bonded directly to -N=C=O or to -C(=O)OH (wherein H may be replaced by a group IA or IIA light metal, or by substituted or unsubstituted ammonium)
 This subclass is indented under subclass 101.  Compounds wherein-N=C=O or -C(=O)OH, in which H may be replaced by Group IA or IIA light metal or by substituted or unsubstituted ammonium, is bonded directly to one of the rings or to a polycyclo ring system containing one of the rings.
(1) Note. Examples of compounds provided for herein are:

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[List of Patents for class 552 subclass 107]    107Chalcogen bonded directly to the ring or ring system (e.g., salicyclic type, hydroxynaphthoic type, etc.)
 This subclass is indented under subclass 106.  Compounds in which the ring, or the polycyclo ring system containing the ring, is further bonded directly to chalcogen (i.e., oxygen, sulfur, selenium or tellurium).
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 552 subclass 108]    108One of the rings is part of a polycyclo ring system (e.g., naphthyldiphenylcarbinol, etc.)
 This subclass is indented under subclass 101.  Compounds wherein a polycyclo ring system is bonded directly to the acyclic carbon.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 552 subclass 109]    109An acyclic alkylene group is bonded directly to nitrogen and to chalcogen, cyano, carbonyl or additional nitrogen (e.g., N-hydroxyalkyl, N cyanoalkyl, N-sulfatoalkyl, aminoalkylamino groups, etc.)
 This subclass is indented under subclass 101.  Compounds wherein (a) nitrogen and (b) cyano, carbonyl, additional nitrogen, or chalcogen (i.e., oxygen, sulfur, selenium or tellurium) are bonded to the same acyclic alkylene group.
(1) Note. Examples of compounds provided for herein are:

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[List of Patents for class 552 subclass 110]    110One of the rings and a benzene ring are bonded directly to the same nitrogen (e.g., triphenylrosaniline, etc.)
 This subclass is indented under subclass 101.  Compounds , wherein the same nitrogen is bonded to one of the rings and to a benzene ring.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 552 subclass 111]    111Nitrogen, except as cyano, attached indirectly to a ring by acyclic nonionic bonding (e.g., benzyl rosanilines, etc.)
 This subclass is indented under subclass 101.  Compounds wherein a ring is attached to nitrogen, except as cyano, by acyclic nonionic bonding.
(1) Note. The compound may contain a cynao group, provided that an additional nitrogen is present which will satisfy the requirement of this subclass.
(2) Note. Examples of compounds provided for herein are:

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[List of Patents for class 552 subclass 112]    112Carbon bonded directly to -S(=O)(=O)OH (wherein H may be replaced by a group IA or IIA light metal, or by substituted or unsubstituted ammonium; i.e., sulfonic acids and salts thereof)
 This subclass is indented under subclass 101.  Compounds wherein-S(=O)(=O)OH, in which H may be replaced by a Group IA or IIA light metal or by substituted or unsubstituted ammonium, is bonded directly to carbon.
  
[List of Patents for class 552 subclass 113]    113Nitrogen bonded directly to one of the rings (e.g., malachite green, rosophenoline, etc.)
 This subclass is indented under subclass 101.  Compounds wherein one of the rings is bonded directly to nitrogen.
  
[List of Patents for class 552 subclass 114]    114Nitrogen bonded directly to each of the rings (e.g., rosaniline, crystal violet, etc.)
 This subclass is indented under subclass 113.  Compounds wherein each of the rings is bonded directly to nitrogen.
  
[List of Patents for class 552 subclass 115]    115Chalcogen bonded directly to one of the rings (e.g., fuchsone, etc.)
 This subclass is indented under subclass 101.  Compounds wherein one of the rings is bonded directly to chalcogen (i.e., oxygen, sulfur, selenium or tellurium).
  
[List of Patents for class 552 subclass 200]    200Tetracyclo naphthacene configured ring system having at least one double bond between ring members and having oxygen bonded directly to a carbon of an interior ring which carbon is a member of one ring only
 This subclass is indented under subclass 1.  Compounds under Class 532, ... having the tetracyclo naphthacene ring configuration with at least one double bond between ring members and having oxygen bonded directly to a carbon of an interior ring, of the ring system, which carbon is a member of one ring only.
(1) Note. The tetracyclo naphthacene configured ring is numbered as follows, for this subclass and its indents:

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(2) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 201]    201Two oxygens double bonded directly to the interior ring in para positions
 This subclass is indented under subclass 200.  Compounds wherein the interior ring, of the tetracyclo naphthacene configured ring system, has two oxygens double bonded directly thereto in para positions.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 202]    202At least six oxygens bonded directly to the tetracyclo ring system
 This subclass is indented under subclass 200.  Compounds wherein the tetracyclo naphthacene configured ring system has at least six oxygens bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 203]    203Nitrogen and carbonyl or cyano bonded directly to the tetracyclo ring system (e.g., tetracycline, etc.)
 This subclass is indented under subclass 202.  Compounds wherein the tetracyclo ring system has nitrogen and either the cyano or carboxyl group bonded directly to the same ring, e.g., tetracycline, etc.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 204]    204Carbon double bonded directly to the tetracyclo ring system (e.g., 6 methylene tetracycline, etc.)
 This subclass is indented under subclass 203.  Compounds which additionally have carbon double bonded directly to the tetracyclo ring system, e.g., 6-methylene tetracycline, etc.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 205]    205Plural nitrogens bonded directly to the tetracyclo ring system
 This subclass is indented under subclass 203.  Compounds wherein the tetracyclo ring system has plural nitrogens bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 206]    206Processes
 This subclass is indented under subclass 203.  Processes of preparing, purifying or recovering the tetracyclo ring system compounds which have nitrogen and cyano or carbonyl bonded directly to them.
  
[List of Patents for class 552 subclass 207]    207Heavy metal or aluminum containing material utilized
 This subclass is indented under subclass 206.  Processes in which an aluminum or heavy metal containing material is utilized.
  
[List of Patents for class 552 subclass 208]    208Polycyclo ring system containing anthracene configured ring system having at least one double bond between ring members and having oxygen single bonded or any atom double bonded directly at the 9- and 10-positions (e.g., anthraquinones, etc.)
 This subclass is indented under subclass 1.  Compounds under Class 532, ... , having a polycyclo ring system which is or contains the anthracene ring configuration with at least one double bond between ring members and having oxygen single bonded or any atom double bonded directly to the ring system at the 9- and 10- positions.
(1) Note. For this and indented subclasses, the anthracene-configured ring is numbered as follows:

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(2) Note. For this and indented subclasses, the anthraquinone, other than those provided for in this class (552), subclasses 268 through 270.
(3) Note. This subclass contains processes of purification and separation of anthraquinone, per se.
(4) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 209]    209Phosphorus, selenium, silicon, heavy metal or aluminum containing
 This subclass is indented under subclass 208.  Compounds which contain phosphorus, selenium, silicon, heavy metal or aluminum.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 210]    210Nitrogen or carbon double bonded directly at the 9- or 10-position
 This subclass is indented under subclass 208.  Compounds wherein nitrogen or carbon is double bonded directly at the 9- or 10- position of the ring system.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 211]    211Sulfur bonded directly to oxygen which is single bonded directly at the 9- or 10-position
 This subclass is indented under subclass 208.  Compounds wherein sulfur is bonded directly to the oxygen which is single bonded directly to the 9- or 10- position of the ring system.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 212]    212The polycyclo ring system is bonded directly to an additional polycyclo ring system having at least three cyclos (e.g., plural anthracene configured ring systems bonded directly to each other, etc.)
 This subclass is indented under subclass 208.  Compounds wherein the polycyclo ring system is bonded directly to an additional polycyclo ring system which has at least three cyclos.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 213]    213The polycyclo ring system and an additional polycyclo ring system having at least three cyclos are bonded directly to the same atom (e.g., plural anthracene configured ring systems bonded directly to the same sulfur, etc.)
 This subclass is indented under subclass 208.  Compounds wherein the polycyclo ring system and an additional polycyclo ring system which has at least three cyclos are bonded directly to the same atom.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 214]    214The atom is nitrogen (e.g., anthrimides, etc.)
 This subclass is indented under subclass 213.  Compounds wherein nitrogen is the atom.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 215]    215At least five cyclos in the polycyclo ring system
 This subclass is indented under subclass 214.  Compounds wherein the polycyclo ring system has at least five cyclos.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 216]    216The polycyclo ring system is tetracyclic
 This subclass is indented under subclass 214.  Compounds wherein the polycyclo ring system is tetracyclic, i.e., is composed of four rings.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 217]    217Nitrogen, oxygen, sulfur, carbon or halogen bonded directly at beta position of the anthracene configured ring system (i.e., 2-, 3-, 6- or 7 position)
 This subclass is indented under subclass 214.  Compounds wherein the anthracene configured ring system has halogen, sulfur, oxygen, nitrogen or additional carbon bonded directly to a beta position.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 218]    218The polycyclo ring system is attached indirectly by nonionic bonding to an additional polycyclo ring system having at least three cyclos (e.g., plural anthracene ring systems attached indirectly to each other by nonionic bonding, etc.)
 This subclass is indented under subclass 208.  Compounds wherein a polycyclo ring system having at least three cyclos is attached indirectly to the anthracene configured ring system by nonionic bonding.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 219]    219Nitrogen, oxygen, sulfur, carbon or halogen bonded directly at beta position of the anthracene configured ring system (i.e. 2-, 3-, 6- or 7 position)
 This subclass is indented under subclass 218.  Compounds wherein the anthracene configured ring system has halogen, sulfur, oxygen, nitrogen or additional carbon bonded directly at the beta position (i.e., 2-, 3-, 6- or 7- position).
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 220]    220The polycyclo ring system contains at least four cyclos
 This subclass is indented under subclass 208.  Compounds wherein the anthracene configured ring system is a part of a polycyclo ring system which has at least four cyclos.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 221]    221Sulfur bonded directly at beta position (i.e., 2-, 3-, 6- or 7-position)
 This subclass is indented under subclass 208.  Compounds wherein a beta position (i.e., 2-, 3-, 6-, or 7- position) of the anthracene ring system has at least one sulfur bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 222]    222Nitrogen or additional sulfur bonded directly to the sulfur
 This subclass is indented under subclass 221.  Compounds wherein the sulfur has nitrogen or additional sulfur bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 223]    223Additional carbon bonded directly to the sulfur
 This subclass is indented under subclass 221.  Compounds wherein the sulfur has additional carbon bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 224]    224Carbonyl, nitrogen, oxygen or halogen bonded directly at beta position (i.e., 2-, 3-, 6- or 7-position)
 This subclass is indented under subclass 221.  Compounds wherein a beta position (i.e., 2-, 3-, 6- or 7- position) of the anthracene configured ring system has halogen, oxygen, nitrogen or carbonyl bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 225]    225Nitrogen bonded directly at alpha position (i.e., 1-, 4-, 5- or 8-position)
 This subclass is indented under subclass 221.  Compounds wherein an alpha position (i.e., 1-, 4-, 5-, or 8- position) of the anthracene configured ring system has nitrogen bonded thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 226]    226Oxygen, sulfur or halogen bonded directly at alpha position (i.e., 1-, 4-, 5- or 8-position)
 This subclass is indented under subclass 225.  Compounds wherein an alpha position (i.e., 1-, 4-, 5-, or 8- position) of the anthracene configured ring system has halogen, sulfur or oxygen bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 227]    227Plural nitrogens, plural oxygens, plural sulfurs, or plural halogens bonded directly at alpha positions
 This subclass is indented under subclass 226.  Compounds wherein at least two alpha positions (i.e., 1-, 4-, 5-, or 8- position) of the anthracene configured ring system have the same atom bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 228]    228Additional ring containing
 This subclass is indented under subclass 225.  Compounds which contain at least one additional ring.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 229]    229Containing cyano or containing nitrogen bonded directly to sulfur (e.g., sulfonamide containing, etc.)
 This subclass is indented under subclass 228.  Compounds which contain cyano or contain nitrogen bonded directly to sulfur.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 230]    230Acyclic carbonyl or thiocarbonyl containing (e.g., thiocarboxamide containing, etc.)
 This subclass is indented under subclass 228.  Compounds which contain acyclic carbonyl or thiocarbonyl.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 231]    231Oxygen, sulfur or halogen bonded directly to the additional ring
 This subclass is indented under subclass 230.  Compounds wherein the additional ring has halogen, sulfur or oxygen bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 232]    232Oxygen, sulfur, nitro or halogen bonded directly to the additional ring
 This subclass is indented under subclass 228.  Compounds wherein the additional ring has halogen, nitro, sulfur or oxygen bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 233]    233Plural additional rings containing
 This subclass is indented under subclass 232.  Compounds which contain plural additional rings.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 234]    234Sulfur bonded directly at alpha position (i.e., 1-, 4-, 5- or 8-position)
 This subclass is indented under subclass 208.  Compounds wherein an alpha position (i.e., 1-, 4-, 5-, or 8- position) of the anthracene configured ring system has sulfur bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 235]    235Nitrogen or halogen bonded directly to the anthracene configured ring system
 This subclass is indented under subclass 234.  Compounds wherein the anthracene configured ring system has halogen or nitrogen bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 236]    236Nitrogen bonded directly at beta position (i.e., 2-, 3-, 6- or 7-position)
 This subclass is indented under subclass 208.  Compounds wherein a beta position (i.e., 2-, 3-, 6-, or 7- position) of the anthracene configured ring system has nitrogen bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 237]    237Oxygen, nitrogen or additional carbon bonded directly to the nitrogen
 This subclass is indented under subclass 236.  Compounds wherein the nitrogen has an additional carbon, an additional nitrogen or oxygen bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 238]    238Nitrogen bonded directly at alpha position (i.e., 1-, 4-, 5- or 8-position)
 This subclass is indented under subclass 208.  Compounds wherein an alpha position (i.e., 1-, 4-, 5-, or 8- position) of the anthracene configured ring system has nitrogen bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 239]    239Cyano bonded directly to the anthracene configured ring system
 This subclass is indented under subclass 238.  Compounds wherein the anthracene configured ring system has cyano bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 240]    240Oxygen bonded directly at beta position (i.e., 2-, 3-, 6- or 7-position)
 This subclass is indented under subclass 238.  Compounds wherein a beta position (i.e., 2-, 3-, 6-, or 7- position) of the anthracene ring system has oxygen bonded directly thereto.
(1) Note. This subclass contains, for example:

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[List of Patents for class 552 subclass 241]