US PATENT SUBCLASS 588 / 239
.~ Hydropyrolysis or destructive steam gasification

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

238  DF  CHALCOGEN CONTAINING SUBSTANCE DESTROYED (O, S, Se, or Te) {3}
239.~ Hydropyrolysis or destructive steam gasification

DEFINITION

Classification: 588/239

Hydropyrolysis or destructive steam gasification:

(under subclass 238) Process wherein water or steam is used in a thermal process for converting waste into an environmentally safe substance.