US PATENT SUBCLASS 424 / 78.14
.~.~.~ Nitrogen heterocycle

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

78.08  DF  SOLID SYNTHETIC ORGANIC POLYMER AS DESIGNATED ORGANIC ACTIVE INGREDIENT (DOAI) {6}
78.1  DF  .~ Ion exchange resin {2}
78.12  DF  .~.~ Adsorbate or treating agent contains nitrogen {3}
78.14.~.~.~ Nitrogen heterocycle {1}
78.15  DF  .~.~.~.~> Plural nitrogen heteroatoms or rings

DEFINITION

Classification: 424/78.14

Nitrogen heterocycle:

(under subclass 78.12) Subject matter wherein the adsorbate or treating agent contains a nitrogen heterocycle; e.g., nicotinamide, pyrilamine, etc.