US PATENT SUBCLASS 205 / 427
.~.~.~ Oxygen containing hetero ring

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.~.~.~ Oxygen containing hetero ring {1}
428  DF  .~.~.~.~> The hetero ring is three-membered

DEFINITION

Classification: 205/427

Oxygen containing hetero ring:

(under subclass 422) Subject matter wherein the hetero ring system contains an oxygen atom as a ring member.