US PATENT SUBCLASS 210 / 679
.~.~ Utilizing exchange or sorbent material associated with inert material

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

600  DF  PROCESSES {14}
660  DF  .~ Ion exchange or selective sorption {8}
679.~.~ Utilizing exchange or sorbent material associated with inert material {1}
680  DF  .~.~.~> Including oil sorbent

DEFINITION

Classification: 210/679

Utilizing exchange or sorbent material associated with inert material:

(under subclass 660) Process including passing a liquid through ion exchange or sorbent material which is mixed with, coated on, or impregnated into inert material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

504, for a coated or impregnated filter material having diverse constituents.

506, for coated or impregnated filter materials.