US PATENT SUBCLASS 95 / 55
.~.~ Hydrogen permeates barrier

Current as of: June, 1999
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95 /   HD   GAS SEPARATION: PROCESSES

43  DF  SELECTIVE DIFFUSION OF GASES {2}
45  DF  .~ Selective diffusion of gases through substantially solid barrier (e.g., semipermeable membrane, etc.) {10}
55.~.~ Hydrogen permeates barrier {1}
56  DF  .~.~.~> Elemental metal or alloy barrier

DEFINITION

Classification: 95/55

Hydrogen permeates barrier:

(under subclass 45) Process in which hydrogen (H2) selectively diffuses through a

substantially solid barrier.