US PATENT SUBCLASS 987 / 212
.~.~ Containing the structure P-(X-aryl ring) (9/18)

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}
209  DF  .~ 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) {6}
212.~.~ Containing the structure P-(X-aryl ring) (9/18) {1}
213  DF  .~.~.~> Containing the structure P-(X)-[C]n-Aryl wherein n is at least one and the aryl ring is bonded to the X atom by a chain of only acyclic carbon atoms (9/165A7)

DEFINITION

Classification: 987/212

Containing the structure P-(X-aryl ring) (9/18):

(under subclass 209) Subject matter wherein the C atom which is bonded directly to the X atom (X is chalcogen) is either a carbon atom of an aryl group or is indirectly bonded to a carbon atom of an aryl group and wherein the indirect bonding is not through the X atom.