US PATENT SUBCLASS 257 / 716
.~.~.~ Cryogenic liquid coolant

Current as of: June, 1999
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257 /   HD   ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES)

678  DF  HOUSING OR PACKAGE {18}
712  DF  .~ With provision for cooling the housing or its contents {6}
714  DF  .~.~ Liquid coolant {2}
716.~.~.~ Cryogenic liquid coolant

DEFINITION

Classification: 257/716

Cryogenic liquid coolant:

(under subclass 714) Subject matter wherein the cooling means uses a liquid to maintain device temperatures at or below 100 degrees Kelvin.

SEE OR SEARCH CLASS

174, Electricity: Conductors and Insulators, appropriate subclasses directed to liquid cooling means.

361, Electricity: Electrical Systems and Devices,

699+, for liquid cooling means for electronic devices or components with housings or mounting assemblies.