US PATENT SUBCLASS 514 / 143
.~.~ Ester of (HX)P=X(XH)(XH) (X is chalcogen) (e.g., phosphate, etc.)

Current as of: June, 1999
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514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

1  DF  DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29}
75  DF  .~ Phosphorus containing other than solely as part of an inorganic ion in an addition salt DOAI {22}
143.~.~ Ester of (HX)P=X(XH)(XH) (X is chalcogen) (e.g., phosphate, etc.) {2}
144  DF  .~.~.~> Triester {3}
148  DF  .~.~.~> Diester

DEFINITION

Classification: 514/143

Ester or (HX) P=X (XH) (XH) (X is chalcogen) (e.g., phosphate, etc.):

(under subclass 775) Subject matter in which the organo-phosphorus compound is an ester of an acid whose structural formula is, as illustrated below, wherein X is chalcogen. [figure]