US PATENT SUBCLASS 987 / 227
.~.~.~ Containing the structure P-(O)-C-[K]-C-(O)-P wherein K is an organic residue (9/09A6)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
226  DF  .~.~ Contains two or more P atoms (9/09B) {1}
227.~.~.~ Containing the structure P-(O)-C-[K]-C-(O)-P wherein K is an organic residue (9/09A6)

DEFINITION

Classification: 987/227

Containing the structure P-(O) -C-[K] -C-(O)-P wherein K is an organic residue (9/09A6):

(under subclass 226) Subject matter wherein the compound containing at least two phosphorus atoms has the structure P-(O-C)-organic residue -(C-O)-P.