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 [Search a list of Patent Appplications for class 540]   CLASS 540,ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
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SUBCLASSES

[List of Patents for class 540 subclass 1]    1HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS
 This subclass is indented under subclass 1.  Compounds under Class 532, ... which are heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium or tellurium) or nitrogen as the only ring hetero atoms.
(1) Note. An example of a compound provided for herein is:

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SEE OR SEARCH CLASS:

506, Combinatorial Chemistry Technology: Method, Library, Apparatus,   for a chemical or biological library or a process of creating said library.
588, Hazardous or Toxic Waste Destruction or Containment,   appropriate subclasses for the chemical destruction of hazardous or toxic waste.
  
[List of Patents for class 540 subclass 2]    2Cyclopentanohydrophenanthrene ring system containing
 This subclass is indented under subclass 1.  Compounds which additionally contain the cyclopentanohydrophenanthrene ring system, which may contain double bonds between its ring members; i.e.,

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(1) Note. The phenanthrene portion of this tetracyclic ring system cannot be completely aromatic; it must be hydrogenated to some degree.
(2) Note. In the indents hereunder which refer to positions, the numbers shown in the definition are employed.
(3) Note. Although the following structure types are properly classified elsewhere as pentacyclo ring systems and not here as cyclopentanohydrophenanthrenes, they have been crossed into appropriate cyclopentanohydrophenanthrene subclass(es) to make them available to the steroid examiners:

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(4) Note. An example of a compound provided for herein is:

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SEE OR SEARCH CLASS:

514, Drug, Bio-Affecting and Body Treating Compositions,   subclasses 172+ for a medical composition including a steroid compound with a hetero ring.
552, Organic Compounds,   subclasses 502+ for nonheterocyclic cyclopentanohydrophenanthrene compounds.
  
[List of Patents for class 540 subclass 3]    3Heavy metal or aluminum containing
 This subclass is indented under subclass 2.  Compounds which include aluminum or a metal having a specific gravity greater than four.
(1) Note. Arsenic is considered a heavy metal.
(2) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 4]    4Boron or silicon containing
 This subclass is indented under subclass 2.  Compounds which contain boron or silicon.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 5]    5Phosphorus attached directly or indirectly to the cyclopentanohydrophenanthrene ring system by nonionic bonding
 This subclass is indented under subclass 2.  Compounds wherein phosphorus is attached directly or indirectly to the cyclopentanohydrophenanthrene ring system by nonionic bonding.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 6]    6Spiro
 This subclass is indented under subclass 2.  Compounds which contain a spiro ring system.
(1) Note. An example of a compound provided for herein is

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[List of Patents for class 540 subclass 7]    7Plural spiro atoms
 This subclass is indented under subclass 6.  Compounds which contain at least two discrete spiro atoms.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 8]    8The cyclopentanohydrophenanthrene ring system is part of a polycyclo ring system having at least five cyclos
 This subclass is indented under subclass 7.  Compounds wherein the cyclopentanohydrophenanthrene ring system is part of a polycyclo ring system having at least five cyclos.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 9]    9Nitrogen containing hetero ring as one of the cyclos of the polycyclo ring system
 This subclass is indented under subclass 8.  Compounds which a nitrogen containing hetero ring is one of the cyclos of the polycyclo ring system.
(1) Note. An example of a compound provided for herein is

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[List of Patents for class 540 subclass 10]    10The cyclopentanohydrophenanthrene ring system shares spiro atoms with two hetero rings, each of which contains two oxygens (e.g., 3,17-bis-ketals, etc.)
 This subclass is indented under subclass 7.  Compounds in which the cyclopentanohydrophenanthrene ring system shares spiro atoms with two hetero rings, each of which contains two oxygens.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 11]    11The cyclopentanohydrophenanthrene ring system shares a spiro atom with a lactone ring (i.e., -C(=X)-O- is part of the ring, wherein X is chalcogen)
 This subclass is indented under subclass 7.  Compounds in which the cyclopentanohydrophenanthrene ring system shares a spiro atom with a lactone ring; i.e., - - O -, wherein X is chalcogen (i.e., oxygen, sulfur, selenium or tellurium), and is part of the ring.
(1) Note. An example of a compound provide for herein is

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[List of Patents for class 540 subclass 12]    12Plural oxygens in both rings which share a spiro atom (e.g., 17,20;20,21 bismethylenedioxy-pregnanes, etc.)
 This subclass is indented under subclass 7.  Compounds wherein both rings which share a spiro atom contain at least two oxygens.
(1) Note. An example of a compound provide for herein is:

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[List of Patents for class 540 subclass 13]    13Nitrogen, sulfur, cyano or -C(=X)-, wherein X is chalcogen, bonded directly to the cyclopentanohydrophenanthrene ring system
 This subclass is indented under subclass 12.  Compounds in which nitrogen, sulfur, cyano or -C(=X)-, wherein X is chalcogen (i.e, oxygen, sulfur, selenium or tellurium), is bonded directly to the cyclopentanohydrophenanthrene ring system.
(1) Note. Examples of compounds provided for herein are:

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[List of Patents for class 540 subclass 14]    14Halogen attached directly or indirectly to the cyclopentanohydrophenanthrene ring system by acyclic nonionic bonding
 This subclass is indented under subclass 12.  Compounds in which halogen is attached directly or indirectly to the cyclopentanohydrophenanthrene ring system by acyclic nonionic bonding.
(1) Note. Examples of compounds provided for herein are:

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[List of Patents for class 540 subclass 15]    15The cyclopentanohydrophenanthrene ring system is part of a polycyclo ring system having at least five cyclos
 This subclass is indented under subclass 6.  Compounds wherein the cyclopentanohydrophenanthrene ring system is part of a polycyclo ring system having at least five cyclos.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 16]    16Hetero ring is one of the cyclos of the polycyclo ring system
 This subclass is indented under subclass 15.  Compounds in which a hetero ring is one of the cyclos of the polycyclo ring system.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 17]    17The hetero ring is five-membered, consisting of one oxygen and four carbons, and shares the spiro atom with a six-membered oxygen containing hetero ring (e.g., sapogenins, etc.)
 This subclass is indented under subclass 16.  Compounds wherein the hetero ring is five-membered, consisting of one oxygen and four carbons, and shares the spiro atom with a six-membered hetero ring which contains oxygen.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 18]    18Purification or recovery
 This subclass is indented under subclass 17.  Processes wherein the cyclopentanohydrophenanthrene containing compound is separated from impurities or from the reaction medium.
  
[List of Patents for class 540 subclass 19]    19Chalcogen bonded directly at the 12-position of the cyclopentanohydrophenanthrene ring system (e.g., hecogenin, etc.)
 This subclass is indented under subclass 17.  Compounds wherein chalcogen (i.e., oxygen, sulfur, selenim or tellurium) is bonded directly at the 12-position of the cyclopentanohydrophenanthrene ring system.
(1) Note. An example of a compound provide for herein is

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[List of Patents for class 540 subclass 20]    20Chalcogen bonded directly at the 11-position of the cyclopentanohydrophenanthrene ring system
 This subclass is indented under subclass 17.  Compounds wherein chalcogen (i.e., oxygen, sulfur, selenium or tellurium) is bonded directly at the 11-position of the cyclopentanohydrophenanthrene ring system.
(1) Note. An example of a compound provided for herein is

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[List of Patents for class 540 subclass 21]    21Chalcogen bonded directly at the 7-position of the cyclopentanohydrophenanthrene ring system
 This subclass is indented under subclass 20.  Compounds wherein chalcogen (i.e, oxygen, sulfur, selenium or tellurium) is bonded directly at the 7-position of the cyclopentanohydrophenanthrene ring system.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 22]    22Halogen, cyano, nitrogen or sulfur bonded directly to the cyclopentanohydrophenanthrene ring system
 This subclass is indented under subclass 17.  Compounds wherein halogen, cyano,nitrogen or sulfur is bonded directly to the cyclopentanohydrophenanthrene ring system.
(1) Note. Examples of compounds provided for herein are:

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[List of Patents for class 540 subclass 23]    23The spiro atom is the 17-position carbon of the cyclopentanohydrophenanthrene ring system
 This subclass is indented under subclass 16.  Compounds in which the 17-position carbon of the cyclopentanohydrophenanthrene ring system is the spiro atom.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 24]    24The hetero ring shares the 11,12,13-positions of the cyclopentanohydrophenanthrene ring system (i.e., bridged; e.g., 11,18-oxido steroids, etc.)
 This subclass is indented under subclass 16.  Compounds in which the hetero ring shares the 11, 12, 13-positions of the cyclopentanohydrophenanthrene ring system (i.e., C-ring bridge).
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 25]    25The hetero ring is three-membered consisting of one oxygen and two carbons (e.g., oxirane, etc.)
 This subclass is indented under subclass 16.  Compounds in which the hetero ring is three-membered consisting of one oxygen and two carbons.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 26]    26The hetero ring shares the 5,6-positions of the cyclopentanohydrophenanthrene ring system
 This subclass is indented under subclass 25.  Compounds wherein the three-membered hetero ring shares the 5, 6-position of the cyclopentanohydrophenanthrene ring system (i.e, ortho-fused to the B-ring).
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 27]    27The hetero ring contains two chalcogens which are bonded directly at the 16 and 17-positions of the cyclopentanohydrophenanthrene ring system
 This subclass is indented under subclass 16.  Compounds wherein the hetero ring contains two chalcogens (i.e., oxygen, sulfur, selenium or tellurium) which are bonded directly at the 16- and 17-positions of the cyclopentanohydrophenanthrene ring system (i.e., orth-fused to the D-ring).
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 28]    28The spiro includes the cyclopentanohydrophenanthrene ring system and a hetero ring
 This subclass is indented under subclass 6.  Compounds in which the cyclopentanohydrophenanthrene ring system shares a spiro atom with a hetero ring.
(1) Note. an example of a compound provided for herein is:

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[List of Patents for class 540 subclass 29]    29Nitrogen in the spiro hetero ring
 This subclass is indented under subclass 28.  Compounds in which the spiro hetero ring contains nitrogen.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 30]    30Sulfur in the spiro hetero ring
 This subclass is indented under subclass 28.  Compounds in which the spiro hetero ring contains sulfur.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 31]    31Plural oxygens in the spiro hetero ring
 This subclass is indented under subclass 28.  Compounds in which the spiro hetero ring contains at least two oxygens.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 32]    32The A ring is a benzene ring
 This subclass is indented under subclass 31.  Compounds in which the A ring of the cyclopentanohydrophenanthrene ring system contains three alternating double bonds (i.e., is a benzene ring).
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 33]    33Chalcogen bonded directly to the spiro hetero ring
 This subclass is indented under subclass 31.  Compounds wherein chalcogen (i.e., oxygen, sulfur, selenium or tellurium) is bonded directly to the spiro hetero ring.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 34]    34The spiro hetero ring shares the 3-position carbon of the cyclopentanohydrophenanthrene ring system
 This subclass is indented under subclass 31.  Compounds in which the spiro atom is the 3-position of the cyclopentanohydrophenanthrene ring system.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 35]    35Halogen bonded directly to the cyclopentanohydrophenanthrene ring system
 This subclass is indented under subclass 34.  Compounds in which halogen is bonded directly to the cyclopentanohydrophenanthrene ring system.
(1) Note. An example of a compound provided for herein is

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[List of Patents for class 540 subclass 36]    36Nitrogen attached directly or indirectly to the cyclopentanohydrophenanthrene ring system by nonionic bonding
 This subclass is indented under subclass 34.  Compounds in which nitrogen is attached directly or indirectly to the cyclopentanohydrophenanthrene ring system by nonionic bonding.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 37]    37Plural cyclic ketal rings containing (e.g., 3,20-bis-ketals, etc.)
 This subclass is indented under subclass 34.  Compounds which contain at least two cyclic ketal rings.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 38]    38Chalcogen bonded directly at the 11-position of the cyclopentanohydrophenanthrene ring system
 This subclass is indented under subclass 34.  Compounds in which chalogen (i.e., oxygen, sulfur, selenium or tellurium) is bonded directly at the 11-position of the cyclopentanohydrophenanthrene ring system.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 39]    39The cyclopentanohydrophenanthrene ring system is fully saturated
 This subclass is indented under subclass 34.  Compounds wherein there are no double bonds between any ring members of the cyclopentanohydrophenanthrene ring system.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 40]    40Carbon chain having carbon-to-carbon unsaturation bonded directly at the 17 position of the cyclopentanohydrophenanthrene ring system
 This subclass is indented under subclass 34.  Compounds in which a carbon chain having carbon-to-carbon unsaturation is bonded directly at the 17-position of the cyclopentanohydrophenanthrene ring system.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 41]    41The spiro hetero ring contains -C(=X)-O-, wherein X is chalcogen, as part of the ring (e.g., spiro-lactones, etc.)
 This subclass is indented under subclass 28.  Compounds in which-C-O-, wherein X is chalcogen (i.e., oxygen, sulfur, selenium or tellurium), is part of the spiro hetero ring.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 42]    42Sulfur bonded directly to the cyclopentanohydrophenanthrene ring system
 This subclass is indented under subclass 41.  Compounds in which sulfur is bonded directly to the cyclopentanohydrophenanthrene ring system.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 43]    43Chalcogen bonded directly at the 11-position of the cyclopentanohydrophenanthrene ring system
 This subclass is indented under subclass 41.  Compounds in which chalcogen (i.e., oxygen, sulfur selenium or tellurium) is bonded directly at the 11-position of the cyclopentanohydrophenanthrene ring system.
(1) Note. An example of compound provided for herein is:

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[List of Patents for class 540 subclass 44]    44Chalcogen, halogen, or nitrogen attached indirectly to the cyclopentanohydrophenanthrene ring system by acyclic nonionic bonding
 This subclass is indented under subclass 41.  Compounds in which chalcogen (i.e., oxygen, sulfur, selenium or tellurium), halogen or nitrogen is attached indirectly to the cyclopentanohydrophenanthrene ring system by acyclic nonionic bonding.
(1) Note. Examples of compounds provided for herein are:

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[List of Patents for class 540 subclass 45]    45The spiro hetero ring is four-membered consisting of one oxygen and three carbons
 This subclass is indented under subclass 28.  Compounds in which the spiro hetero ring is four-membered consisting of one oxygen and three carbons.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 46]    46The spiro hetero ring is three-membered consisting of one oxygen and two carbons (e.g., oxirane, etc.)
 This subclass is indented under subclass 28.  Compounds wherein the spiro hetero ring is three-membered consisting of one oxygen and two carbons.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 47]    47The cyclopentanohydrophenanthrene ring system is part of a polycyclo ring system having at least five cyclos
 This subclass is indented under subclass 2.  Compounds in which the cylopentanohydrophenanthrene ring system is part of a polycyclo ring system having at least five cyclos.
(1) Note. An example of a compound provided for herein is

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[List of Patents for class 540 subclass 48]    48Hetero ring is one of the cyclos of the polycyclo ring system
 This subclass is indented under subclass 47.  Compounds wherein a hetero ring is one of the cyclos of the polycyclo ring system.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 49]    49The hetero ring contains nitrogen
 This subclass is indented under subclass 48.  Compounds in which the hetero ring contains nitrogen.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 50]    50Plural nitrogens in the hetero ring
 This subclass is indented under subclass 49.  Compounds in which the hetero ring contains at least two nitrogens.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 51]    51The hetero ring is five-membered
 This subclass is indented under subclass 50.  Compounds in which the hetero ring is five-membered.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 52]    52The hetero ring consists of two nitrogens and three carbons and is ortho fused to the A ring
 This subclass is indented under subclass 51.  Compounds wherein the hetero ring consists of two nitrogens and three carbons and is ortho-fused to the A ring.
(1) Note. Examples of compounds provided for herein are:

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[List of Patents for class 540 subclass 53]    53Having -C(=X)-, wherein X is chalcogen, bonded directly at the 17-position of the cyclopentanohydrophenanthrene ring system
 This subclass is indented under subclass 52.  Compounds in which -C- wherein X is chalcogen (i.e., oxygen, sulfur, selenium or tellurium) is bonded directly at the 17-position of the cyclopentanohydrophenanthrene ring system.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 54]    54The hetero ring consists of two nitrogens and three carbons and is ortho fused to the D ring
 This subclass is indented under subclass 51.  Compounds wherein the hetero ring consists of two nitrogens and three carbons and is ortho-fused to the D ring.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 55]    55Chalcogen in the hetero ring
 This subclass is indented under subclass 49.  Compounds in which the hetero ring contains chalcogen (i.e., oxygen, sulfur, selenium or tellurium) in addition to the nitrogen.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 56]    56The hetero ring is five-membered
 This subclass is indented under subclass 55.  Compounds in which the hetero ring is five-membered.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 57]    57The hetero ring is ortho-fused to the A ring
 This subclass is indented under subclass 56.  Compounds in which the hetero ring is ortho-fused to the A ring.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 58]    58The hetero ring is five-membered
 This subclass is indented under subclass 49.  Compounds wherein the hetero ring is five-membered.
(1) Note. An example of a compound provided for herein is

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[List of Patents for class 540 subclass 59]    59The hetero ring contains sulfur
 This subclass is indented under subclass 48.  Compounds wherein the hetero ring contains sulfur.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 60]    60The hetero ring is a cyclic anhydride (i.e., containing -C(=X)-O-C(=Y)- as part of the ring, wherein X and Y are chalcogen; e.g., 5,8-maleic anhydride adduct of 5,7,9(11)-pregnatrien-3,20-di-one, etc.)
 This subclass is indented under subclass 48.  Compounds in which - - O - -, wherein X and Y may be the same or diverse chalogens (i.e., oxygen, sulfur, selenium or tellurium), is part of the hetero ring.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 61]    61The hetero ring contains plural oxygens
 This subclass is indented under subclass 48.  Compounds wherein the hetero ring contains at least two oxygens.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 62]    62Two of the cyclos share at least three ring members or a ring carbon is shared by three of the cyclos (e.g., bridged, peri-fused, etc.)
 This subclass is indented under subclass 61.  Compounds wherein (a) at least three ring members of one cyclo are ring members of an additional cyclo or (b) a ring carbon is a member of three of the cyclos in the polycyclo ring system (e.g., bridged or peri-fused, etc.).
(1) Note. Examples of compounds provided for herein are:

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[List of Patents for class 540 subclass 63]    63The hetero ring is ortho-fused to the D ring
 This subclass is indented under subclass 61.  Compounds wherein the hetero ring is ortho-fused to the D ring.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 64]    64At least six cyclos in the polycyclo ring system
 This subclass is indented under subclass 63.  Compounds wherein the polycyclo ring system contains at least six cyclos.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 65]    65Nitrogen or acyclic chalcogen bonded directly to the hetero ring (e.g., cyclic carbonates, etc.)
 This subclass is indented under subclass 63.  Compounds wherein nitrogen or acyclic chalcogen (i.e., oxygen, sulfur, selenium or tellurium) is bonded directly to the hetero ring.
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 66]    66The A ring is a benzene ring
 This subclass is indented under subclass 63.  Compounds in which the A ring of the cyclopentanohydrophenanthrene ring system contains three alternating double bonds (i.e., is a benzene ring).
(1) Note. An example of a compound provided for herein is:

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[List of Patents for class 540 subclass 67]    67Sulfur or nitrogen attached directly or indirectly to the cyclopentanohydrophenanthrene ring system by acyclic nonionic bonding
 This subclass is indented under subclass 63.  Compounds in which sulfur or nitrogen is attached directly or indirectly to the cyclopentanohydrophenanthrene ring system by acyclic nonionic bonding.
(1) Note. Examples of compounds provided for herein are: