US PATENT SUBCLASS 987 / 183
.~.~.~ Contains two or more (C)-P(=X) (C) (X-B) groups or at least one (B-X) (C) (X=)-P-(C)-P-(=X) (C) (X-B) group (9/30A6)

Current as of: June, 1999
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987 /   HD   ORGANIC COMPOUNDS CONTAINING A Bi, Sb, As, OR P ATOM OR CONTAINING A METAL ATOM OF THE 6TH TO 8TH GROUP OF THE PERIODIC SYSTEM

30  DF  PHOSPHORUS COMPOUNDS (9/02; 9/06) {15}
116  DF  .~ Contains at least one (C)-P bond (9/28) {19}
181  DF  .~.~ 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) {5}
183.~.~.~ Contains two or more (C)-P(=X) (C) (X-B) groups or at least one (B-X) (C) (X=)-P-(C)-P-(=X) (C) (X-B) group (9/30A6)

DEFINITION

Classification: 987/183

Contains two or more (C)-P(=X)(C)(X-B) groups or at least one (B-X) (C) (X=)-P-(C)-P-(=X)(C)(X-B) group (9/30A6):

(under subclass 181) Subject matter wherein the P compound contains two or more (C)-P (=X)(C) (X-B) groups or at least one (B-X)(C)(X=) -P-(C)-P(=X)(C)(X-B) group.