US PATENT SUBCLASS 204 / 541
.~.~.~.~ Organic material prepared, recovered, or treated

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}
541.~.~.~.~ Organic material prepared, recovered, or treated

DEFINITION

Classification: 204/541

Organic material prepared, recovered, or treated:

(under subclass 520) Process in which organic material is

prepared, recovered, or treated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

530, for electrophoretic or electro-osmotic ion selective barrier separation of organic material using alternating anion and cation selective membranes.

544, for electrophoretic or electro-osmotic nonion selective barrier separation of organic material.