US PATENT SUBCLASS 502 / 438
.~.~ Chemically reducing an oxide or product thereof

Current as of: June, 1999
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502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

400  DF  SOLID SORBENT {6}
416  DF  .~ Free carbon containing {3}
438.~.~ Chemically reducing an oxide or product thereof

DEFINITION

Classification: 502/438

Chemically reducing an oxide or product thereof:

(under subclass 416) Process in which electrons are supplied to a carbon atom bound to an oxygen atom, to give elemental carbon.