US PATENT SUBCLASS 987 / 158
.~.~.~.~ 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)


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}
146  DF  .~.~ Pentavalent P having the structure (C)-P(=X) (X) (X) where X is chalcogen (9/38) {8}
147  DF  .~.~.~ Pentavalent P having the structure (C)-P(=X) (X) (X-*C) and * indicates a direct bond to the adjacent X atom (9/40) {12}
158.~.~.~.~ 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)


DEFINITION

Classification: 987/158

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):

(under subclass 147) Subject matter wherein the C atom bonded directly to the P atom is part of an ethylenic group or is bonded indirectly or directly to an ethylenic group and wherein the indirect linkage is not through the P atom.

(1) Note. An ethylenic group is defined as a double or triple bond between adjacent acyclic carbon atoms.