US PATENT SUBCLASS 96 / 14
.~ Membrane having ring containing organic compound

Current as of: June, 1999
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96 /   HD   GAS SEPARATION: APPARATUS

4  DD  APPARATUS FOR SELECTIVE DIFFUSION OF GASES (E.G., SEMIPERMEABLE MEMBRANE, ETC.) {6}
14.~ Membrane having ring containing organic compound

DEFINITION

Classification: 96/14

Membrane having ring containing organic compound:

(under subclass 4) Apparatus in which the barrier has at least one cyclic or ring containing organic compound.

SEE OR SEARCH THIS CLASS, SUBCLASS:

13, for gas diffusion apparatus with plural layers in which at least one of such layers has a ring containing organic compound.

SEE OR SEARCH CLASS

210, Liquid Purification or Separation,

500.28+, for semipermeable membranes containing a cyclic organic compound which are used for purifying or separating liquids.