US PATENT SUBCLASS 514 / 476
.~ N-C(=X)X containing (X is chalcogen) DOAI

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}
476.~ N-C(=X)X containing (X is chalcogen) DOAI {3}
477  DF  .~.~> N-C(=X)-X-N containing
478  DF  .~.~> N-C(=X)-X-C containing {6}
491  DF  .~.~> With an additional active ingredient

DEFINITION

Classification: 514/476

N-C (=X) X containing (X is chalcogen) DOAI:

(under subclass 1) Subject matter wherein the DOAI contains the grouping NX wherein X is chalcogen, e.g., H2NOH etc.