US PATENT SUBCLASS 987 / 123
.~.~.~ Compound having two or more (C)-P(=X) groups or at least one (X=)-P-(C)-P(=X) group (9/53A6)

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}
121  DF  .~.~ Pentavalent P compound having the structure (C)-P(=X)(C or H)(C or H) where X is chalcogen (9/53) {4}
123.~.~.~ Compound having two or more (C)-P(=X) groups or at least one (X=)-P-(C)-P(=X) group (9/53A6)

DEFINITION

Classification: 987/123

Compound having two or more (C)-P(=X) groups or at least one (X=)-P-(C)-P(=X) group (9/53A6):

(under subclass 121) Subject matter wherein the P compound contains two or more (C)-P(=X)( C or H) groups or at least one (C or H) (X=)-P-(C)-P-(=X) (C or H) group where X is chalcogen.

(1) Note. The P compound can contain two or more separate required groups or two or more P atoms may share a common carbon atom, e.g., (C or H)-(X=)P-(=X)(C)(C or H).