US PATENT SUBCLASS 514 / 156
.~.~ Hetero ring 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}
155  DF  .~ Para-N-benzene - sulfoxy-N containing DOAI, and said benzene ring is not part of a polycyclo ring system {1}
156.~.~ Hetero ring containing {2}
157  DF  .~.~.~> The hetero ring is six-membered and includes at least two nitrogens and no other hetero atoms
158  DF  .~.~.~> The hetero ring is five-membered

DEFINITION

Classification: 514/156

Hetero ring containing:

(under subclass 155) Subject matter wherein the active ingredient having at least one group, shown in the first illustration below, also contains a heterocyclic group, e.g., sulfapyridine, shown in the second illustration, below. [figure] [figure] [figure] [caption], etc.