US PATENT SUBCLASS 588 / 245
.~ Heating or vacuum used to drive off or produce a volatile substance

Current as of: June, 1999
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588 /   HD   HAZARDOUS OR TOXIC WASTE DESTRUCTION OR CONTAINMENT

244  DF  N OR P CONTAINING SUBSTANCE DESTROYED {2}
245.~ Heating or vacuum used to drive off or produce a volatile substance

DEFINITION

Classification: 588/245

Heating or vacuum used to drive off or produce a volatile substance:

(under subclass 244) Process wherein hazardous or toxic substances containing N or P are destroyed or converted into an environmentally safe substance.

(1) Note. This subclass includes hydropyrolysis and destructive steam gasification.