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Classification Resources
 
Class   552ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
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This Class 552 is considered to be an integral part of Class 260 (see the Class 260 schedule for the position of this Class in schedule hierarchy). This Class retains all pertinent definitions and class lines of Class 260.
     ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1)
[List of Pre Grant Publications for class 552 subclass 1][List of Patents for class 552 subclass 1]1 Subclass 1 indent level is 1 Azides
 [List of Pre Grant Publications for class 552 subclass 100][List of Patents for class 552 subclass 100]100 Subclass 100 indent level is 1 Acyclic carbon bonded directly to three benzene rings and to cyano (e.g., triphenylacetonitrile, etc.)
[List of Pre Grant Publications for class 552 subclass 101][List of Patents for class 552 subclass 101]101 Subclass 101 indent level is 1 Acyclic 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.)
 [List of Pre Grant Publications for class 552 subclass 102][List of Patents for class 552 subclass 102]102 Subclass 102 indent level is 2 With preservative or stabilizer
 [List of Pre Grant Publications for class 552 subclass 103][List of Patents for class 552 subclass 103]103 Subclass 103 indent level is 2 Heavy metal or alumium containing
 [List of Pre Grant Publications for class 552 subclass 104][List of Patents for class 552 subclass 104]104 Subclass 104 indent level is 2 Nitrogen, sulfur, phosphorus, or peroxy attached directly to the acyclic carbon by nonionic bonding
 [List of Pre Grant Publications for class 552 subclass 105][List of Patents for class 552 subclass 105]105 Subclass 105 indent level is 2 The acyclic carbon and an additional carbon are bonded directly to the same oxygen (ethers, esters, etc.)
[List of Pre Grant Publications for class 552 subclass 106][List of Patents for class 552 subclass 106]106 Subclass 106 indent level is 2 One 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)
 [List of Pre Grant Publications for class 552 subclass 108][List of Patents for class 552 subclass 108]108 Subclass 108 indent level is 2 One of the rings is part of a polycyclo ring system (e.g., naphthyldiphenylcarbinol, etc.)
 [List of Pre Grant Publications for class 552 subclass 109][List of Patents for class 552 subclass 109]109 Subclass 109 indent level is 2 An 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.)
 [List of Pre Grant Publications for class 552 subclass 110][List of Patents for class 552 subclass 110]110 Subclass 110 indent level is 2 One of the rings and a benzene ring are bonded directly to the same nitrogen (e.g., triphenylrosaniline, etc.)
 [List of Pre Grant Publications for class 552 subclass 111][List of Patents for class 552 subclass 111]111 Subclass 111 indent level is 2 Nitrogen, except as cyano, attached indirectly to a ring by acyclic nonionic bonding (e.g., benzyl rosanilines, etc.)
 [List of Pre Grant Publications for class 552 subclass 112][List of Patents for class 552 subclass 112]112 Subclass 112 indent level is 2 Carbon 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)
[List of Pre Grant Publications for class 552 subclass 113][List of Patents for class 552 subclass 113]113 Subclass 113 indent level is 2 Nitrogen bonded directly to one of the rings (e.g., malachite green, rosophenoline, etc.)
 [List of Pre Grant Publications for class 552 subclass 115][List of Patents for class 552 subclass 115]115 Subclass 115 indent level is 2 Chalcogen bonded directly to one of the rings (e.g., fuchsone, etc.)
[List of Pre Grant Publications for class 552 subclass 200][List of Patents for class 552 subclass 200]200 Subclass 200 indent level is 1 Tetracyclo 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
[List of Pre Grant Publications for class 552 subclass 208][List of Patents for class 552 subclass 208]208 Subclass 208 indent level is 1 Polycyclo 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.)
 [List of Pre Grant Publications for class 552 subclass 209][List of Patents for class 552 subclass 209]209 Subclass 209 indent level is 2 Phosphorus, selenium, silicon, heavy metal or aluminum containing
 [List of Pre Grant Publications for class 552 subclass 210][List of Patents for class 552 subclass 210]210 Subclass 210 indent level is 2 Nitrogen or carbon double bonded directly at the 9- or 10-position
 [List of Pre Grant Publications for class 552 subclass 211][List of Patents for class 552 subclass 211]211 Subclass 211 indent level is 2 Sulfur bonded directly to oxygen which is single bonded directly at the 9- or 10-position
 [List of Pre Grant Publications for class 552 subclass 212][List of Patents for class 552 subclass 212]212 Subclass 212 indent level is 2 The 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.)
[List of Pre Grant Publications for class 552 subclass 213][List of Patents for class 552 subclass 213]213 Subclass 213 indent level is 2 The 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.)
[List of Pre Grant Publications for class 552 subclass 218][List of Patents for class 552 subclass 218]218 Subclass 218 indent level is 2 The 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.)
 [List of Pre Grant Publications for class 552 subclass 220][List of Patents for class 552 subclass 220]220 Subclass 220 indent level is 2 The polycyclo ring system contains at least four cyclos
[List of Pre Grant Publications for class 552 subclass 221][List of Patents for class 552 subclass 221]221 Subclass 221 indent level is 2 Sulfur bonded directly at beta position (i.e., 2-, 3-, 6- or 7-position)
[List of Pre Grant Publications for class 552 subclass 234][List of Patents for class 552 subclass 234]234 Subclass 234 indent level is 2 Sulfur bonded directly at alpha position (i.e., 1-, 4-, 5- or 8-position)
[List of Pre Grant Publications for class 552 subclass 236][List of Patents for class 552 subclass 236]236 Subclass 236 indent level is 2 Nitrogen bonded directly at beta position (i.e., 2-, 3-, 6- or 7-position)
[List of Pre Grant Publications for class 552 subclass 238][List of Patents for class 552 subclass 238]238 Subclass 238 indent level is 2 Nitrogen bonded directly at alpha position (i.e., 1-, 4-, 5- or 8-position)
 [List of Pre Grant Publications for class 552 subclass 239][List of Patents for class 552 subclass 239]239 Subclass 239 indent level is 3 Cyano bonded directly to the anthracene configured ring system
[List of Pre Grant Publications for class 552 subclass 240][List of Patents for class 552 subclass 240]240 Subclass 240 indent level is 3 Oxygen bonded directly at beta position (i.e., 2-, 3-, 6- or 7-position)
[List of Pre Grant Publications for class 552 subclass 243][List of Patents for class 552 subclass 243]243 Subclass 243 indent level is 3 Oxygen bonded directly at alpha position (i.e., 1-, 4-, 5- or 8-position)
[List of Pre Grant Publications for class 552 subclass 249][List of Patents for class 552 subclass 249]249 Subclass 249 indent level is 3 Halogen bonded directly to the anthracene configured ring system
[List of Pre Grant Publications for class 552 subclass 251][List of Patents for class 552 subclass 251]251 Subclass 251 indent level is 3 Carbon bonded directly to the anthracene configured ring system
[List of Pre Grant Publications for class 552 subclass 253][List of Patents for class 552 subclass 253]253 Subclass 253 indent level is 3 Oxygen or sulfur bonded directly to the nitrogen (e.g., 1- nitroanthraquinone, etc.)
[List of Pre Grant Publications for class 552 subclass 255][List of Patents for class 552 subclass 255]255 Subclass 255 indent level is 3 Additional carbon bonded directly to the nitrogen
 [List of Pre Grant Publications for class 552 subclass 261][List of Patents for class 552 subclass 261]261 Subclass 261 indent level is 2 Oxygen bonded directly at beta position (i.e., 2-, 3-, 6- or 7-position)
 [List of Pre Grant Publications for class 552 subclass 262][List of Patents for class 552 subclass 262]262 Subclass 262 indent level is 2 Oxygen bonded directly at alpha position (i.e., 1-, 4-, 5-, or 8-position)
 [List of Pre Grant Publications for class 552 subclass 263][List of Patents for class 552 subclass 263]263 Subclass 263 indent level is 2 Halogen bonded directly at beta position (i.e., 2-, 3-, 6-, or 7-position)
 [List of Pre Grant Publications for class 552 subclass 264][List of Patents for class 552 subclass 264]264 Subclass 264 indent level is 2 Halogen bonded directly at alpha position (i.e., 1-, 4-, 5- or 8-position)
[List of Pre Grant Publications for class 552 subclass 265][List of Patents for class 552 subclass 265]265 Subclass 265 indent level is 2 Carbon bonded directly at beta position (i.e., 2-, 3-, 6- or 7-position)
 [List of Pre Grant Publications for class 552 subclass 267][List of Patents for class 552 subclass 267]267 Subclass 267 indent level is 2 Carbon bonded directly at alpha position (i.e., 1-, 4-, 5- or 8-position)
 [List of Pre Grant Publications for class 552 subclass 268][List of Patents for class 552 subclass 268]268 Subclass 268 indent level is 2 Processes of forming anthraquinone per se or enolic form thereof by reacting an organic acid, aldehyde, anhydride or an indane (e.g., reacting phthalic anhydride, methyl phenylindane, etc.)
[List of Pre Grant Publications for class 552 subclass 269][List of Patents for class 552 subclass 269]269 Subclass 269 indent level is 2 Processes of forming anthraquinone per se or enolic form thereof utilizing heavy metal containing material (e.g., vanadium catalyst utilized, etc.)
[List of Pre Grant Publications for class 552 subclass 271][List of Patents for class 552 subclass 271]271 Subclass 271 indent level is 1 Polycyclo 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 direct at the 9- or 10-position (e.g., anthrones, anthranois, etc.)
 [List of Pre Grant Publications for class 552 subclass 272][List of Patents for class 552 subclass 272]272 Subclass 272 indent level is 2 Phosphorus, selenium, tellurium, or heavy metal containing
 [List of Pre Grant Publications for class 552 subclass 273][List of Patents for class 552 subclass 273]273 Subclass 273 indent level is 2 The polycyclo ring system is bonded directly to an additional polycyclo ring system having at least three cyclo (e.g., plural anthracene configured ring systems bonded directly to each other, etc.)
 [List of Pre Grant Publications for class 552 subclass 274][List of Patents for class 552 subclass 274]274 Subclass 274 indent level is 2 The polycyclo ring system is attached indirectly by nonionic bonding to an additional polycyclo ring system having a least three cyclos (e.g., plural anthracene configured ring systems bonded directly to the same nitrogen, etc.)
 [List of Pre Grant Publications for class 552 subclass 275][List of Patents for class 552 subclass 275]275 Subclass 275 indent level is 2 The polycyclo ring system has at least ten cyclos
[List of Pre Grant Publications for class 552 subclass 276][List of Patents for class 552 subclass 276]276 Subclass 276 indent level is 2 The polycyclo ring system has nine cyclos
[List of Pre Grant Publications for class 552 subclass 282][List of Patents for class 552 subclass 282]282 Subclass 282 indent level is 2 The polycyclo ring system has seven or eight cyclos
[List of Pre Grant Publications for class 552 subclass 284][List of Patents for class 552 subclass 284]284 Subclass 284 indent level is 2 The polycyclo ring system has five of six cyclos
[List of Pre Grant Publications for class 552 subclass 286][List of Patents for class 552 subclass 286]286 Subclass 286 indent level is 2 The polycyclo ring system has four cyclos (e.g., benzanthrones, etc.)
 [List of Pre Grant Publications for class 552 subclass 289][List of Patents for class 552 subclass 289]289 Subclass 289 indent level is 2 Nitrogen or sulfur bonded directly to the anthracene configured ring system
 [List of Pre Grant Publications for class 552 subclass 290][List of Patents for class 552 subclass 290]290 Subclass 290 indent level is 2 Carbon, halogen or plural oxygens bonded directly to the anthracene configured ring system
[List of Pre Grant Publications for class 552 subclass 291][List of Patents for class 552 subclass 291]291 Subclass 291 indent level is 1 Cyclohexadiene having atoms double bonded directly at the 1- and 2- positions (e.g., orthoquinones, etc.)
[List of Pre Grant Publications for class 552 subclass 293][List of Patents for class 552 subclass 293]293 Subclass 293 indent level is 1 Cyclohexadiene having atoms double bonded directly at the 1- and 4- positions (e.g., paraquinones, etc.)
[List of Pre Grant Publications for class 552 subclass 500][List of Patents for class 552 subclass 500]500 Subclass 500 indent level is 1 Cyclopentanohydrophenanthrene ring system wherein two nonadjacent carbons of the ring system are bonded directly to each other (e.g., 3,5 cyclocholesterols, 3,5-cycloandrostanes, etc.)
[List of Pre Grant Publications for class 552 subclass 502][List of Patents for class 552 subclass 502]502 Subclass 502 indent level is 1 Cyclopentanohydrophenanthrene ring system containing
 [List of Pre Grant Publications for class 552 subclass 503][List of Patents for class 552 subclass 503]503 Subclass 503 indent level is 2 With preservative or stabilizer
 [List of Pre Grant Publications for class 552 subclass 504][List of Patents for class 552 subclass 504]504 Subclass 504 indent level is 2 Heavy metal or aluminum containing
 [List of Pre Grant Publications for class 552 subclass 505][List of Patents for class 552 subclass 505]505 Subclass 505 indent level is 2 Boron, silicon, selenium or tellurium containing
[List of Pre Grant Publications for class 552 subclass 506][List of Patents for class 552 subclass 506]506 Subclass 506 indent level is 2 Phosphorus attached directly or indirectly to the cyclopentanohydrophenanthrene ring system by nonionic bonding
 [List of Pre Grant Publications for class 552 subclass 508][List of Patents for class 552 subclass 508]508 Subclass 508 indent level is 2 Spiro
 [List of Pre Grant Publications for class 552 subclass 509][List of Patents for class 552 subclass 509]509 Subclass 509 indent level is 2 Plural cyclopentanohydrophenanthrene ring systems
[List of Pre Grant Publications for class 552 subclass 510][List of Patents for class 552 subclass 510]510 Subclass 510 indent level is 2 The cyclopentanohydrophenanthrene ring system is part of a polycyclo ring system having at least five cyclos
[List of Pre Grant Publications for class 552 subclass 515][List of Patents for class 552 subclass 515]515 Subclass 515 indent level is 2 Nitrogen bonded directly to the cyclopentanohydrophenanthrene ring system
[List of Pre Grant Publications for class 552 subclass 523][List of Patents for class 552 subclass 523]523 Subclass 523 indent level is 2 Sulfur bonded directly to the cyclopentanohydrophenanthrene ring system
[List of Pre Grant Publications for class 552 subclass 526][List of Patents for class 552 subclass 526]526 Subclass 526 indent level is 2 Carbon double bonded directly to the cyclopentanohydrophenantrene ring system
 [List of Pre Grant Publications for class 552 subclass 535][List of Patents for class 552 subclass 535]535 Subclass 535 indent level is 2 Halogen bonded directly at the 12-position of the cyclopentanohydrophenanthrene ring system
[List of Pre Grant Publications for class 552 subclass 536][List of Patents for class 552 subclass 536]536 Subclass 536 indent level is 2 Halogen bonded directly at the 16-position of the cyclopentanohydrophenanthrene ring system
 [List of Pre Grant Publications for class 552 subclass 539][List of Patents for class 552 subclass 539]539 Subclass 539 indent level is 2 Halomethyl bonded directly to the cyclopentanohydrophenanthrene ring system (e.g., 16-trifluoromethyl progesterones, etc.)
[List of Pre Grant Publications for class 552 subclass 540][List of Patents for class 552 subclass 540]540 Subclass 540 indent level is 2 Carbon bonded directly at the 17 beta-position of the cyclopentanohydrophenanthrene ring system is a member of an acyclic chain of six or more uninterrupted carbons (e.g., sterols, etc.)
[List of Pre Grant Publications for class 552 subclass 548][List of Patents for class 552 subclass 548]548 Subclass 548 indent level is 2 Carbon bonded directly at the 17 beta-position of the cyclopentanohydrophenanthrene ring system is a member of an acyclic chain of five uninterrupted carbons (e.g., choladienes, cholanic acids, etc.) stocks, yeast, molds, etc.)
[List of Pre Grant Publications for class 552 subclass 553][List of Patents for class 552 subclass 553]553 Subclass 553 indent level is 2 Carbon bonded directly at the 17 beta-position of the cyclopentanohydrophenanthrene ring system is a member of an acyclic chain of three or four uninterruped carbons, (e.g., diketobisnorcholenic acids, etc.)
[List of Pre Grant Publications for class 552 subclass 557][List of Patents for class 552 subclass 557]557 Subclass 557 indent level is 2 Carbon bonded directly at the 17-beta-position of the cyclopentanohydrophenanthrene ring system is a member of an acyclic chain of two uninterrupted carbons (e.g., pregnanes, etc.)
 [List of Pre Grant Publications for class 552 subclass 558][List of Patents for class 552 subclass 558]558 Subclass 558 indent level is 3 The A ring is a benzene ring
[List of Pre Grant Publications for class 552 subclass 559][List of Patents for class 552 subclass 559]559 Subclass 559 indent level is 3 Three or more oxygens bonded directly to the cyclopentanohydrophenanthrene ring system
[List of Pre Grant Publications for class 552 subclass 582][List of Patents for class 552 subclass 582]582 Subclass 582 indent level is 3 Two oxygens bonded directly to the cyclopentanohydrophenanthrene ring system
[List of Pre Grant Publications for class 552 subclass 599][List of Patents for class 552 subclass 599]599 Subclass 599 indent level is 3 Exactly one oxygen bonded directly to the cyclopentanohydrophenanthrene ring system
[List of Pre Grant Publications for class 552 subclass 610][List of Patents for class 552 subclass 610]610 Subclass 610 indent level is 2 Acyclic carbon bonded directly at the 17 beta-position of the cyclopentanohydrophenanthrene ring system (e.g., etiocholanic acids, 17 cyanoetiocholanes, 17-aldehydrostanes, etc.)
[List of Pre Grant Publications for class 552 subclass 612][List of Patents for class 552 subclass 612]612 Subclass 612 indent level is 2 Three or more oxygens bonded directly to the cyclopentanohydrophenanthrene ring system
[List of Pre Grant Publications for class 552 subclass 623][List of Patents for class 552 subclass 623]623 Subclass 623 indent level is 2 Two oxygens bonded directly to the cyclopentanohydrophenanthrene ring system
 [List of Pre Grant Publications for class 552 subclass 624][List of Patents for class 552 subclass 624]624 Subclass 624 indent level is 3 Oxygen bonded directly at the 16-position
[List of Pre Grant Publications for class 552 subclass 625][List of Patents for class 552 subclass 625]625 Subclass 625 indent level is 3 The A ring is a benzene ring (e.g., estrones, estradiols, etc.)
 [List of Pre Grant Publications for class 552 subclass 632][List of Patents for class 552 subclass 632]632 Subclass 632 indent level is 3 19-position substituted (e.g., 19-methylene-androstanes, 10-cyanoestranes, etc.)
[List of Pre Grant Publications for class 552 subclass 633][List of Patents for class 552 subclass 633]633 Subclass 633 indent level is 3 Carbon bonded directly at the 10- and 13-positions (e.g., androstenes, etc.)
[List of Pre Grant Publications for class 552 subclass 642][List of Patents for class 552 subclass 642]642 Subclass 642 indent level is 3 Carbon bonded directly at the 13-position (e.g., 19-norandrostenes, estradienes, etc.)
[List of Pre Grant Publications for class 552 subclass 650][List of Patents for class 552 subclass 650]650 Subclass 650 indent level is 2 Oxygen bonded directly at the 16- or 17-position of the cyclopentanohydrophenanthrene ring system
 [List of Pre Grant Publications for class 552 subclass 653][List of Patents for class 552 subclass 653]653 Subclass 653 indent level is 1 9,10-Seco-cyclopentanohydrophenanthrene ring system or 9,10-seco cyclopentanohydrophenanthrene ring system having a bond between the 3- and 5-positions (e.g., vitamin D compounds, cholecalciferols, activated 7-dehydrocholesterols, dihydrotachysterols, 3,5 cyclovitamin D compounds, etc.)
 
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