US PATENT SUBCLASS 204 / 524
.~.~.~.~.~.~ And using ion exchange material (e.g., suspended particles, etc.)

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}
518  DF  .~.~ Barrier separation (e.g., using membrane, filter paper, etc.) {5}
520  DF  .~.~.~ Ion selective {8}
522  DF  .~.~.~.~ Using both anion and cation selective membranes {4}
523  DF  .~.~.~.~.~ Alternating anion and cation selective membranes {8}
524.~.~.~.~.~.~ And using ion exchange material (e.g., suspended particles, etc.)

DEFINITION

Classification: 204/524

And using ion exchange material (e.g., suspended particles, etc.):

(under subclass 523) Process in which ion exchange material (e.g., suspended particles, etc.) is also used.

SEE OR SEARCH THIS CLASS, SUBCLASS:

481, for electrophoretic or electro-osmotic coating or forming with regeneration or replenishment of the coating bath using ion exchange material.

536, for electrophoretic or electro-osmotic ion selective barrier separation combined with the use of ion exchange material, but not using both anion and cation selective membranes.

542, for other electrophoretic or electro-osmotic barrier separation processes combined with a diverse-type separation.