US PATENT SUBCLASS 210 / 651
.~.~.~.~ Removing specified material


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

600  DF  PROCESSES {14}
634  DF  .~ Liquid/liquid solvent or colloidal extraction or diffusing or passing through septum selective as to material of a component of liquid; such diffusing or passing being effected by other than only an ion exchange or sorption process {11}
649  DF  .~.~ Diffusing or passing through septum selective as to material of a component of liquid {1}
650  DF  .~.~.~ Filtering through membrane (e.g., ultrafiltration) {2}
651.~.~.~.~ Removing specified material


DEFINITION

Classification: 210/651

Removing specified material:

(under subclass 650) Process in which a constituent removed from the liquid is positively identified.

(1) Note. The material itself rather than a characteristic must be identified. For example, oily material, and food waste, or organic are not considered to be identified material; however, protein and named bacteria are considered to be specified material.