US PATENT SUBCLASS 62 / 636
.~.~.~ Sorption

Current as of: June, 1999
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62 /   HD   REFRIGERATION

600  DF  CRYOGENIC TREATMENT OF GAS OR GAS MIXTURE {4}
617  DF  .~ Separation of gas mixture {3}
618  DF  .~.~ Natural gas {5}
636.~.~.~ Sorption

DEFINITION

Classification: 62/636

Sorption:

(under subclass 618) Subject matter wherein a constituent of the gas mixture is extracted by absorption or adsorption.

SEE OR SEARCH CLASS

95, Gas Separation: Processes,

90+, for processes of gas separation by solid sorption, per se.