US PATENT SUBCLASS 205 / 429
.~.~ Cyclopentanohydrophenanthrene ring system containing compound produced (e.g., steroids, etc.)

Current as of: June, 1999
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205 /   HD   ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS

334  DF  ELECTROLYTIC SYNTHESIS (PROCESS, COMPOSITION, AND METHOD OF PREPARING COMPOSITION) {21}
413  DF  .~ Preparing organic compound {18}
429.~.~ Cyclopentanohydrophenanthrene ring system containing compound produced (e.g., steroids, etc.)

DEFINITION

Classification: 205/429

Cyclopentanohydrophenanthrene ring system containing compound produced (e.g., steroids, etc.)

(under subclass 413) Subject matter wherein the organic compound produced contains a cyclopentanohydrophenanthrene ring nucleus.