US PATENT SUBCLASS 205 / 428
.~.~.~.~ The hetero ring is three-membered

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}
422  DF  .~.~ Heterocyclic compound produced {2}
427  DF  .~.~.~ Oxygen containing hetero ring {1}
428.~.~.~.~ The hetero ring is three-membered

DEFINITION

Classification: 205/428

The hetero ring is three-membered:

(under subclass 427) Subject matter wherein the oxygen containing hetero ring has three ring members.