US PATENT SUBCLASS 210 / 900
ULTRA PURE WATER (E.G., CONDUCTIVITY WATER)

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

900ULTRA PURE WATER (E.G., CONDUCTIVITY WATER)

DEFINITION

Classification: 210/900

ULTRA PURE WATER (E.G., CONDUCTIVITY WATER):

Collection of disclosures directed to the production of extremely pure water; the technique may involve "polishing" (an ion exchange process) or combinations of processes.

SEE OR SEARCH CLASS

203, Distillation: Processes, Separatory,

10+, for a distillation purification of water.