US PATENT SUBCLASS 514 / 51
.~.~.~.~.~.~ Phosphorus containing

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}
23  DF  .~ Carbohydrate (i.e., saccharide radical containing) DOAI {6}
42  DF  .~.~ N-glycoside {1}
43  DF  .~.~.~ Nitrogen containing hetero ring {4}
49  DF  .~.~.~.~ Pyrimidines (including hydrogenated) (e.g., cytosine, etc.) {1}
50  DF  .~.~.~.~.~ 2,4-diketone pyrimidine or derivative (e.g., uracil, etc.) {1}
51.~.~.~.~.~.~ Phosphorus containing

DEFINITION

Classification: 514/51

Phosphorus containing:

(under subclass 50) Subject matter wherein the 2, 4-diketone pyrimidine compound contains phosphorus.