US PATENT SUBCLASS 205 / 749
.~.~.~.~ With recycle or reuse

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

687  DF  ELECTROLYTIC MATERIAL TREATMENT (PRODUCT, PROCESS, AND ELECTROLYTE COMPOSITION) {8}
742  DF  .~ Water, sewage, or other waste water {11}
746  DF  .~.~ Using membrane {3}
748  DF  .~.~.~ Plural membranes {1}
749.~.~.~.~ With recycle or reuse

DEFINITION

Classification: 205/749

With recycle or reuse:

(under subclass 748) Subject matter in which material is either circulated outside the treatment process and returned thereto or used again later (e.g., in plural steps with or without regeneration, etc.).