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Classification Resources
 
Class   987ORGANIC COMPOUNDS CONTAINING A Bi, Sb, As, OR P ATOM OR CONTAINING A METAL ATOM OF THE 6TH TO 8TH GROUP OF THE PERIODIC SYSTEM
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E-subclasses in USPC Class 987/1-368 were created as duplicates of EPO groups in C07F. With the implementation of CPC, these E subclasses should no longer be used. Instead, use CPC groups in C07F.
 [List of Pre Grant Publications for class 987 subclass 1][List of Patents for class 987 subclass 1]1 COMPOUND CONTAINS TWO OR MORE HEAVY METAL ATOMS WHICH ARE IN DIFFERENT GROUPS OF THE PERIODIC SYSTEM (19/00; 19/00B)
[List of Pre Grant Publications for class 987 subclass 2][List of Patents for class 987 subclass 2]2 HEAVY METAL COMPOUNDS WHEREIN THE METAL IS BONDED DIRECTLY TO AT LEAST TWO RING SYSTEMS (METALLOCENES) (17/00)
[List of Pre Grant Publications for class 987 subclass 4][List of Patents for class 987 subclass 4]4 COBALT COMPOUNDS (15/06)
[List of Pre Grant Publications for class 987 subclass 6][List of Patents for class 987 subclass 6]6 NICKEL COMPOUNDS (15/04)
[List of Pre Grant Publications for class 987 subclass 8][List of Patents for class 987 subclass 8]8 IRON COMPOUNDS (15/02; 15/03)
[List of Pre Grant Publications for class 987 subclass 10][List of Patents for class 987 subclass 10]10 PLATINUM COMPOUNDS (15/00N7)
[List of Pre Grant Publications for class 987 subclass 12][List of Patents for class 987 subclass 12]12 RHODIUM COMPOUNDS (15/00N6)
[List of Pre Grant Publications for class 987 subclass 14][List of Patents for class 987 subclass 14]14 PALLADIUM COMPOUNDS (15/00N5)
 [List of Pre Grant Publications for class 987 subclass 16][List of Patents for class 987 subclass 16]16 RUTHENIUM COMPOUNDS (15/00N4; 15/00N4B)
 [List of Pre Grant Publications for class 987 subclass 17][List of Patents for class 987 subclass 17]17 IRIDIUM COMPOUNDS (15/00N3; 15/00N3B)
 [List of Pre Grant Publications for class 987 subclass 18][List of Patents for class 987 subclass 18]18 OSMIUM COMPOUNDS (15/00N2; 15/00N2B)
[List of Pre Grant Publications for class 987 subclass 19][List of Patents for class 987 subclass 19]19 COMPOUNDS CONTAINING ELEMENTS OF THE 7TH GROUP OF THE PERIODIC SYSTEM (MN, TC, RE) (13/00)
[List of Pre Grant Publications for class 987 subclass 21][List of Patents for class 987 subclass 21]21 COMPOUNDS CONTAINING ELEMENTS OF THE 6TH GROUP OF THE PERIODIC SYSTEM (CR, MO, W, PO) (11/00)
 [List of Pre Grant Publications for class 987 subclass 23][List of Patents for class 987 subclass 23]23 BISMUTH COMPOUNDS (9/94)
[List of Pre Grant Publications for class 987 subclass 24][List of Patents for class 987 subclass 24]24 ANTIMONY COMPOUNDS (9/90; 9/90B; 9/90C; 9/90D; 9/90E)
[List of Pre Grant Publications for class 987 subclass 26][List of Patents for class 987 subclass 26]26 ARSENIC COMPOUNDS (9/70C)
[List of Pre Grant Publications for class 987 subclass 30][List of Patents for class 987 subclass 30]30 PHOSPHORUS COMPOUNDS (9/02; 9/06)
 [List of Pre Grant Publications for class 987 subclass 31][List of Patents for class 987 subclass 31]31 Subclass 31 indent level is 1 Compound contains a ring which is devoid of a metal atom as ring member and wherein the ring contains at least one atom other than C, N, O, S, P, Se, or Te as a ring atom; e.g., boron, etc. (9/6596)
 [List of Pre Grant Publications for class 987 subclass 32][List of Patents for class 987 subclass 32]32 Subclass 32 indent level is 1 Compound contains at least one atom of silicon or boron (9/02G)
[List of Pre Grant Publications for class 987 subclass 33][List of Patents for class 987 subclass 33]33 Subclass 33 indent level is 1 Compound contains a ring which is devoid of a metal atom and contains at least one P atom as ring member (9/6564; 9/6564V; 9/6568; 9/6568B; 9/6568C; 9/6568D; 9/6568E; 9/6568F)
[List of Pre Grant Publications for class 987 subclass 34][List of Patents for class 987 subclass 34]34 Subclass 34 indent level is 2 Ring contains N and P only, or may include in addition to the required N and P, only C, S, or O (9/6581; 9/6584; 9/6584A)
 [List of Pre Grant Publications for class 987 subclass 36][List of Patents for class 987 subclass 36]36 Subclass 36 indent level is 2 Ring contains S and P only, or may include in addition to the required S and P, only C or O (9/6578; 9/6578D)
[List of Pre Grant Publications for class 987 subclass 37][List of Patents for class 987 subclass 37]37 Subclass 37 indent level is 2 Ring contains O and P only, or may include in addition to the required O and P, only C (9/6571)
[List of Pre Grant Publications for class 987 subclass 49][List of Patents for class 987 subclass 49]49 Subclass 49 indent level is 1 Ring is devoid of a P or a metal atom and contains at least one hereto atom (O, S, N, Se, or Te) and may or may not contain C (9/547; 9/6524)
[List of Pre Grant Publications for class 987 subclass 50][List of Patents for class 987 subclass 50]50 Subclass 50 indent level is 2 At least two rings, each ring containing at least one hetero atom, and wherein the rings are condensed directly to each other or condensed together through a common carbocyclic ring system (9/6561)
[List of Pre Grant Publications for class 987 subclass 54][List of Patents for class 987 subclass 54]54 Subclass 54 indent level is 2 At least two different rings containing hetero atoms or wherein, if the rings are the same, the substituents on at least two of the rings are different (9/6558; 9/6558B)
[List of Pre Grant Publications for class 987 subclass 56][List of Patents for class 987 subclass 56]56 Subclass 56 indent level is 2 Ring contains S only, or may include in addition to the required S, only C, Se, or Te (9/6553)
[List of Pre Grant Publications for class 987 subclass 58][List of Patents for class 987 subclass 58]58 Subclass 58 indent level is 2 Ring contains O only, or may include in addition to the required O, only C, S, Se, or Te (9/655)
[List of Pre Grant Publications for class 987 subclass 61][List of Patents for class 987 subclass 61]61 Subclass 61 indent level is 2 Ring contains N and S only, or may include in addition to the required N and S, only C, O, Se, or Te (9/6536)
[List of Pre Grant Publications for class 987 subclass 65][List of Patents for class 987 subclass 65]65 Subclass 65 indent level is 2 Ring contains N and O only, or may include in addition to the required N and O, only C (9/6527; 9/653; 9/653V)
[List of Pre Grant Publications for class 987 subclass 67][List of Patents for class 987 subclass 67]67 Subclass 67 indent level is 2 Exactly three N atoms as only hetero atoms in ring (9/6515)
[List of Pre Grant Publications for class 987 subclass 75][List of Patents for class 987 subclass 75]75 Subclass 75 indent level is 2 Exactly two Ns as only hetero atom in ring (9/645)
[List of Pre Grant Publications for class 987 subclass 90][List of Patents for class 987 subclass 90]90 Subclass 90 indent level is 2 Single N as only hetero atom in ring (9/553; 9/568)
 [List of Pre Grant Publications for class 987 subclass 91][List of Patents for class 987 subclass 91]91 Subclass 91 indent level is 3 Seven or more atoms in ring containing the single N atom (9/553A7)
[List of Pre Grant Publications for class 987 subclass 92][List of Patents for class 987 subclass 92]92 Subclass 92 indent level is 3 Six atoms in ring containing the single N atom (9/576)
[List of Pre Grant Publications for class 987 subclass 103][List of Patents for class 987 subclass 103]103 Subclass 103 indent level is 3 Five-membered ring containing a single N atom (9/572; 9/572G; 9/572K; 9/572K2; 9/572K4; 9/572R)
 [List of Pre Grant Publications for class 987 subclass 106][List of Patents for class 987 subclass 106]106 Subclass 106 indent level is 3 Four-membered ring containing a single N atom is condensed or bridged to a carbocyclic ring system (9/568V)
 [List of Pre Grant Publications for class 987 subclass 107][List of Patents for class 987 subclass 107]107 Subclass 107 indent level is 3 N atom of four-membered ring containing a single N atom is bonded directly to a P atom or indirectly to a P atom other than through a ring atom of the four-membered ring (9/568E)
 [List of Pre Grant Publications for class 987 subclass 108][List of Patents for class 987 subclass 108]108 Subclass 108 indent level is 3 Three-membered ring containing a single N atom (9/564)
 [List of Pre Grant Publications for class 987 subclass 109][List of Patents for class 987 subclass 109]109 Subclass 109 indent level is 1 Quaternary compounds containing the structure (C)a-P-(Z)b where a+b=4, a=1-3, b=1-3, and Z is an atom other than C or H (9/54K)
[List of Pre Grant Publications for class 987 subclass 110][List of Patents for class 987 subclass 110]110 Subclass 110 indent level is 1 Quaternary phosphonium compounds (C)a-P-(H)b wherein a+b=4, a=1-4, b=1-3, (9/54; 9/54A1; 9/54A1+W; 9/54A1+W2)
[List of Pre Grant Publications for class 987 subclass 116][List of Patents for class 987 subclass 116]116 Subclass 116 indent level is 1 Contains at least one (C)-P bond (9/28)
 [List of Pre Grant Publications for class 987 subclass 117][List of Patents for class 987 subclass 117]117 Subclass 117 indent level is 2 Pentavalent P compound containing a P(=N) bond and wherein the P atom is bonded directly to three carbon atoms (9/535D; 9/535D2)
 [List of Pre Grant Publications for class 987 subclass 118][List of Patents for class 987 subclass 118]118 Subclass 118 indent level is 2 Pentavalent P compound containing a P(=C) bond and wherein the P atom is not bonded directly to chalcogen (9/535B)
 [List of Pre Grant Publications for class 987 subclass 119][List of Patents for class 987 subclass 119]119 Subclass 119 indent level is 2 Pentavalent P compound containing at least one bond to carbon and wherein the other four valences are bonded directly to four separate atoms, none of which are chalcogen (9/535)
 [List of Pre Grant Publications for class 987 subclass 120][List of Patents for class 987 subclass 120]120 Subclass 120 indent level is 2 Pentavalent P compound having the structure (X=C*)-P(=X) or (cyano*)-P(=X) where X is chalcogen, * indicates a direct bond of the C of the C=X group or of the C of the cyano group directly to the P atom, and the other atoms bonded directly to the P atom are either carbon and hydrogen (9/53A9; 9/53P; 9/53Y)
[List of Pre Grant Publications for class 987 subclass 121][List of Patents for class 987 subclass 121]121 Subclass 121 indent level is 2 Pentavalent P compound having the structure (C)-P(=X)(C or H)(C or H) where X is chalcogen (9/53)
 [List of Pre Grant Publications for class 987 subclass 126][List of Patents for class 987 subclass 126]126 Subclass 126 indent level is 2 Trivalent compounds having the structure (Hal)-P-(C)(C or H), or (Hal)-2-P(C), or pentavalent compounds having the structure (Hal)-P(=X)(C) (C or H) or (Hal)2-P(=X)(C) where X is chalcogen (9/52)
 [List of Pre Grant Publications for class 987 subclass 127][List of Patents for class 987 subclass 127]127 Subclass 127 indent level is 2 Trivalent P compound having the structure (C or H)(C)-P-P-(C)(C or H) (9/50P)
 [List of Pre Grant Publications for class 987 subclass 128][List of Patents for class 987 subclass 128]128 Subclass 128 indent level is 2 Trivalent P compound containing a metal atom and having the structure (C)-P(C or H or Metal) (C or H or Metal) (9/50Y; 9/50Z; 9/50Z2; 9/50Z4; 9/50Z6; 9/50Z8)
[List of Pre Grant Publications for class 987 subclass 129][List of Patents for class 987 subclass 129]129 Subclass 129 indent level is 2 Trivalent P compound having the structure (C)-P-(C or H)(C or H) (9/50)
 [List of Pre Grant Publications for class 987 subclass 135][List of Patents for class 987 subclass 135]135 Subclass 135 indent level is 2 Trivalent P compound having the structure (C)-P-(N) or (C)-P(Hal) (9/48F; 9/48H)
 [List of Pre Grant Publications for class 987 subclass 136][List of Patents for class 987 subclass 136]136 Subclass 136 indent level is 2 Trivalent P having the structure (C)2-P(XH or X-Salt) or pentavalent P having the structure (C)2-P(=X) (XH or X-Salt) where X is chalcogen (9/46)
[List of Pre Grant Publications for class 987 subclass 137][List of Patents for class 987 subclass 137]137 Subclass 137 indent level is 2 Trivalent P having the structure (C)-P-(XH or X-Salt) (XH or X-Salt or H) or pentavalent P having the structure (C)-P(=X) (XH or X-Salt) (XH or X-Salt or H) where X is chalcogen (9/48)
[List of Pre Grant Publications for class 987 subclass 140][List of Patents for class 987 subclass 140]140 Subclass 140 indent level is 2 Pentavalent P having the structure (C)-P(=X) (X) (N) or (C)-P(=X) (N)2 where X is chalcogen (9/44; 9/44A; 9/44A1; 9/44A6; 9/44A9; 9/44B; 9/44B1; 9/44B9)
[List of Pre Grant Publications for class 987 subclass 144][List of Patents for class 987 subclass 144]144 Subclass 144 indent level is 2 Pentavalent P having the structure (C)-P(=X) (X) (Hal) (X) or (C)-P(=X) (Hal)2 wherein X is chalcogen (9/42)
[List of Pre Grant Publications for class 987 subclass 146][List of Patents for class 987 subclass 146]146 Subclass 146 indent level is 2 Pentavalent P having the structure (C)-P(=X) (X) (X) where X is chalcogen (9/38)
[List of Pre Grant Publications for class 987 subclass 147][List of Patents for class 987 subclass 147]147 Subclass 147 indent level is 3 Pentavalent P having the structure (C)-P(=X) (X) (X-*C) and * indicates a direct bond to the adjacent X atom (9/40)
 [List of Pre Grant Publications for class 987 subclass 148][List of Patents for class 987 subclass 148]148 Subclass 148 indent level is 4 Contains the structure (C)-P(=X) (X) (X-*acyl), (C)-P(=X) (X-C) (X-*Z), or (C)-P(=X) (X) (X-*cyano) where Z is an atom other than C or H and * indicates a direct bond to the adjacent X atom (9/40C9; 9/40C9+Q; 9/40C9+U)
[List of Pre Grant Publications for class 987 subclass 149][List of Patents for class 987 subclass 149]149 Subclass 149 indent level is 4 Contains the structure (C)-P(=X) (X) (X-aryl) (9/40C4)
 [List of Pre Grant Publications for class 987 subclass 151][List of Patents for class 987 subclass 151]151 Subclass 151 indent level is 4 Contains the structure (C)-P(=X) (X) (X-carbocyclic ring) (9/40C3)
 [List of Pre Grant Publications for class 987 subclass 152][List of Patents for class 987 subclass 152]152 Subclass 152 indent level is 4 Contains the structure (C)-P(=X) (X) (X-ethylenic group) (9/40C2)
 [List of Pre Grant Publications for class 987 subclass 153][List of Patents for class 987 subclass 153]153 Subclass 153 indent level is 4 Contains the structure (X=C*)-P(=X) (X) (X-C) or (cyano*)-P(=X) (X) (X-C) where * indicates a direct bond of the C of the C=X group or of the C atom of the cyano group directly to the P atom (9/40A9; 9/40A9+Q)
 [List of Pre Grant Publications for class 987 subclass 154][List of Patents for class 987 subclass 154]154 Subclass 154 indent level is 4 Contains the structure aryl-(C)n-P(=X) (X) (X-C) where n is at least one (9/40A7; 9/40A7+P)
 [List of Pre Grant Publications for class 987 subclass 155][List of Patents for class 987 subclass 155]155 Subclass 155 indent level is 4 Contains two or more (C)-P(=X) (X) (X-C) groups at least one (C-X) (X) (X=)-P-(C)-P(=X) (X) (X-C) group (9/40A6; 9/40A6+J; 9/40A6+U)
 [List of Pre Grant Publications for class 987 subclass 156][List of Patents for class 987 subclass 156]156 Subclass 156 indent level is 4 Contains the structure (aryl*)-P(=X) (X) (X-C), * indicates a direct bond between a carbon of the aryl ring, and the P atom (9/40A4)
 [List of Pre Grant Publications for class 987 subclass 157][List of Patents for class 987 subclass 157]157 Subclass 157 indent level is 4 Contains the structure "carbocyclic ring" -P(=X) (X) (X-C) where "--" indicates that a ring carbon of the carbocyclic ring may or may not be directly bonded to the P atom (9/40A3)
 [List of Pre Grant Publications for class 987 subclass 158][List of Patents for class 987 subclass 158]158 Subclass 158 indent level is 4 Contains the structure "ethylenic group"-P(=X) (X) (X-C) where "--" indicates that a C of the ethylenic group may or may not be bonded directly to the P atom (9/40A2)
 [List of Pre Grant Publications for class 987 subclass 159][List of Patents for class 987 subclass 159]159 Subclass 159 indent level is 4 Contains the structure (C)-P(=X) (X) (X-C-Q) where Q is a moiety containing an atom other than C or H (9/40C; 9/40C1)
 [List of Pre Grant Publications for class 987 subclass 160][List of Patents for class 987 subclass 160]160 Subclass 160 indent level is 4 Contains the structure Q-(C)-P(=X) (X) (X-C) where Q is a moiety containing an atom other than C or H (9/40A; 9/40A1; 9/40A1+U9; 9/40B)
 [List of Pre Grant Publications for class 987 subclass 161][List of Patents for class 987 subclass 161]161 Subclass 161 indent level is 3 Contains the structure (X=C)-P(=X) (X) (X) or (cyano*)-P(=X) (X) (X) where * indicates a direct bond of the C of the C=X group or of the C atom of the cyano group to the P atom (9/38A9)
 [List of Pre Grant Publications for class 987 subclass 162][List of Patents for class 987 subclass 162]162 Subclass 162 indent level is 3 Contains the structure aryl-(C)n-P(=X)(X) (X) where n is at least one (9/38A7)
[List of Pre Grant Publications for class 987 subclass 163][List of Patents for class 987 subclass 163]163 Subclass 163 indent level is 3 Contains two or more P atoms (9/38B)
 [List of Pre Grant Publications for class 987 subclass 165][List of Patents for class 987 subclass 165]165 Subclass 165 indent level is 3 Contains the structure (aryl group*)-P(=X) (X) (X) where * indicates a direct bond of one of the carbon atoms of the aryl group to the P atom (9/38A4)
 [List of Pre Grant Publications for class 987 subclass 166][List of Patents for class 987 subclass 166]166 Subclass 166 indent level is 3 Contains the structure "carbocyclic ring"-P-(=X) (X) (X) where "--" indicates that a ring carbon of the carbocyclic ring may or may not be directly bonded to the P atom (9/38A3)
 [List of Pre Grant Publications for class 987 subclass 167][List of Patents for class 987 subclass 167]167 Subclass 167 indent level is 3 Contains the structure "ethylenic group"-P(=X) (X) (X) where "--" indicates that a carbon atom of the ethylenic group may or may not be directly bonded to the P atom (9/38A2)
 [List of Pre Grant Publications for class 987 subclass 168][List of Patents for class 987 subclass 168]168 Subclass 168 indent level is 3 Contains the structure Q-(C)-P(=X) (X) (X) where Q is a moiety containing an atom other than C or H (9/38A1; 9/38A1+U6; 9/38A1+U9)
 [List of Pre Grant Publications for class 987 subclass 169][List of Patents for class 987 subclass 169]169 Subclass 169 indent level is 2 Pentavalent P having the structure (C)2-P(=X) (N) where X is chalcogen (9/36)
 [List of Pre Grant Publications for class 987 subclass 170][List of Patents for class 987 subclass 170]170 Subclass 170 indent level is 2 Pentavalent P having the structure (C)2-P(=X)(Hal) where X is chalcogen (9/34)
[List of Pre Grant Publications for class 987 subclass 171][List of Patents for class 987 subclass 171]171 Subclass 171 indent level is 2 Pentavalent P having the structure (C)2-P(=X) (X-C) where X is chalcogen (9/32)
[List of Pre Grant Publications for class 987 subclass 181][List of Patents for class 987 subclass 181]181 Subclass 181 indent level is 2 Pentavalent P having the structure (C)2-P(=X) (X-B) where X is chalcogen and B represents an atom other than C (9/30; 9/30B)
[List of Pre Grant Publications for class 987 subclass 187][List of Patents for class 987 subclass 187]187 Subclass 187 indent level is 1 Phosphorus directly bonded to N, i.e., P(N) (9/22; 9/22A)
[List of Pre Grant Publications for class 987 subclass 203][List of Patents for class 987 subclass 203]203 Subclass 203 indent level is 1 Pentavalent P containing the structure (Hal)-P(X-C) wherein X is a chalcogen atom (9/14)
 [List of Pre Grant Publications for class 987 subclass 206][List of Patents for class 987 subclass 206]206 Subclass 206 indent level is 1 Trivalent P containing the structure (Hal)-P-(X-C) wherein X is a chalcogen atom (9/146; 9/206)
[List of Pre Grant Publications for class 987 subclass 207][List of Patents for class 987 subclass 207]207 Subclass 207 indent level is 1 Trivalent P containing the structure P-(X-C) wherein a S, Se, or Te atom is directly bonded to the P atom and wherein X is chalcogen (X may qualify as the required S, Se, or Te atom) (9/201; 9/201A1; 9/202; 9/203)
[List of Pre Grant Publications for class 987 subclass 209][List of Patents for class 987 subclass 209]209 Subclass 209 indent level is 1 Pentavalent P containing the structure P-(X-C) wherein a S, Se, or Te is directly bonded to the P atom and wherein X is chalcogen (X may qualify as the required S, Se, or Te atom) (9/16; 9/165; 9/165A1)
[List of Pre Grant Publications for class 987 subclass 217][List of Patents for class 987 subclass 217]217 Subclass 217 indent level is 1 P is trivalent and contains the structure P-(O-C) or P-(O-Z) where Z is an atom other than H (9/141; 9/141A1)
[List of Pre Grant Publications for class 987 subclass 224][List of Patents for class 987 subclass 224]224 Subclass 224 indent level is 1 P is pentavalent and contains the structure P-(O-C) or P-(O-Z) where Z indicates an atom other than H (9/09; 9/09A1)
 [List of Pre Grant Publications for class 987 subclass 234][List of Patents for class 987 subclass 234]234 Subclass 234 indent level is 1 Reaction products of at least one compound containing both P and S atoms with a hydrocarbon or the reaction product of a P an a S reactant with a hydrocarbon (reactant P and S can be in elemental or compound form) (9/04)
[List of Pre Grant Publications for class 987 subclass 300][List of Patents for class 987 subclass 300]300 COMPOUND CONTAINS BOTH A PHOSPHORUS AND A METAL ATOM (9/02A)
[List of Pre Grant Publications for class 987 subclass 350][List of Patents for class 987 subclass 350]350 PHOSPHORUS CONTAINING AT LEAST ONE NITROGEN ATOM AS SOLE HETERO ATOM (9/65)
 
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