US PATENT SUBCLASS 987 / 176
.~.~.~ Contains two or more (C)-P(=X) (C) (X-C) groups or at least one (X-C) (C) (X=)P-(C)-P(=X) (C) (X-C) group (9/32A6)

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}
171  DF  .~.~ Pentavalent P having the structure (C)2-P(=X) (X-C) where X is chalcogen (9/32) {9}
176.~.~.~ Contains two or more (C)-P(=X) (C) (X-C) groups or at least one (X-C) (C) (X=)P-(C)-P(=X) (C) (X-C) group (9/32A6)

DEFINITION

Classification: 987/176

Contains two or more (C)-P (=X)(C) (X-C) groups or at least one (X-C)(C) (X=)P-(C)-P(=X)(C)(X-C) group (9/32A6):

(under subclass 171) Subject matter wherein the P compound contains two or more (C)-P(=X) (C)(X-C) groups or at least one (X-C) (C) (X=)-P-(C)-P(=X)(C) (X-C) group.