US PATENT SUBCLASS 585 / 914
.~.~ Phase change, e.g., evaporation, etc.

Current as of: June, 1999
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585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

*  DD  HEAT CONSIDERATIONS {2}
911  DF  .~ Introducing, maintaining, or removing heat by atypical procedure {3}
914.~.~ Phase change, e.g., evaporation, etc.

DEFINITION

Classification: 585/914

Phase change, e.g., evaporation, etc.:

(under subclass 911) Subject matter which discloses temperature regulation due to the heat released or consumed by change of a material from the gaseous, liquid, or solid state to another of these states.

SEE OR SEARCH THIS CLASS, SUBCLASS:

715, for autorefrigeration in an alkylation process to produce a saturated compound.