US PATENT SUBCLASS 987 / 229
.~.~.~ Ring is other than aryl (9/117)


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}
224  DF  .~ P is pentavalent and contains the structure P-(O-C) or P-(O-Z) where Z indicates an atom other than H (9/09; 9/09A1) {6}
228  DF  .~.~ Containing the structure P-(O-carbocyclic ring) (9/12) {2}
229.~.~.~ Ring is other than aryl (9/117)


DEFINITION

Classification: 987/229

Ring is other than aryl (9/117):

(under subclass 228) Subject matter wherein the carbocyclic ring is other than aryl.