US PATENT SUBCLASS 987 / 233
.~.~ 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)

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}
233.~.~ 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: 987/233

Alcohol 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):

(under subclass 224) Subject matter wherein the C atom bonded directly to the oxygen atom is part of an organic moiety containing three or more hydroxyl groups or derivative groups thereof, e.g., phosphatides, lecithin, etc.