US PATENT SUBCLASS 514 / 172
.~.~ 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}
169  DF  .~ Cyclopentanohydrophenanthrene ring system DOAI {5}
172.~.~ Hetero ring containing {4}
173  DF  .~.~.~> Spiro ring system
174  DF  .~.~.~> -O-C-O- is part of a hetero ring (e.g., acetonide, etc.)
175  DF  .~.~.~> -C(=O)-O-is part of a hetero ring (e.g., lactone, etc.)
176  DF  .~.~.~> Nitrogen containing hetero ring

DEFINITION

Classification: 514/172

Hetero ring containing:

(under subclass 169) Subject matter wherein the cyclopentanohydrophenanthrene ring containing compound contains a heterocyclic ring. Included herein are: [figure] [caption]and [figure] [caption], etc.