US PATENT SUBCLASS 204 / 481
.~.~.~.~ Using ion exchange material

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

*  DD  PROCESSES AND PRODUCTS {7}
450  DF  .~ Electrophoresis or electro-osmosis processes and electrolyte compositions therefor when not provided for elsewhere {14}
471  DF  .~.~ Coating or forming of object {13}
480  DF  .~.~.~ With regeneration or replenishment of coating bath (e.g., ultrafiltration, ion exchange, measurement followed by addition of concentrated reagent, etc.) {2}
481.~.~.~.~ Using ion exchange material

DEFINITION

Classification: 204/481

Using ion exchange material:

(under subclass 480) Process in which ion exchange material is used to regenerate or replenish the coating bath.

SEE OR SEARCH THIS CLASS, SUBCLASS:

524, and 536, for electrophoretic or electro-osmotic ion selective barrier separation in which an ion exchange material is also employed.