US PATENT SUBCLASS 95 / 102
.~.~.~.~.~ Vacuum applied

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

90  DF  SOLID SORPTION {8}
95  DF  .~ Including reduction of pressure {3}
96  DF  .~.~ Plural pressure varying steps (e.g., pressure swing adsorption, etc.) {2}
97  DF  .~.~.~ Sweep gas used {1}
98  DF  .~.~.~.~ Feed gas or constituent thereof is sweep gas {3}
102.~.~.~.~.~ Vacuum applied

DEFINITION

Classification: 95/102

Vacuum applied:

(under subclass 98) Process in which a step of pressure

reduction is accomplished by using a pressure below that of the atmosphere.