US PATENT SUBCLASS 987 / 224
.~ 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)

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.~ 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}
225  DF  .~.~> Containing the structure P-(O-*acyl), P-(O-*Z) wherein Z is an atom other than C or H, or P-(O*cyano) where * indicates a direct bond to the adjacent oxygen atom (9/09A9; 9/09A9+Q; 9/09A9+U)
226  DF  .~.~> Contains two or more P atoms (9/09B) {1}
228  DF  .~.~> Containing the structure P-(O-carbocyclic ring) (9/12) {2}
231  DF  .~.~> Containing the structure P-(O-ethylenic group) (9/113)
232  DF  .~.~> Containing the structure P-(O-unsubstituted alkyl) wherein all of the O atoms in the molecule which are single bonded to the P atom are bound directly to carbon radicals containing only carbon and hydrogen atoms (9/11)
233  DF  .~.~> Alchohol moiety of ester contains at least three hydroxyl functions or derivatives thereof and wherein the oxygen atoms of the derivative can be attributed to the hydroxyl functions; e.g., phosphatides, lecithin, etc. (9/10)

DEFINITION

Classification: 987/224

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):

(under subclass 30) Subject matter wherein the P is pentavalent and contains the structure P-(O-C) or P-(O-Z) where Z is an atom other than H where P is bonded directly to the oxygen atom and a carbon atom is bonded directly to the oxygen atom, or an atom other than hydrogen is directly bonded to the oxygen atom.