US PATENT SUBCLASS 204 / 173
.~.~ Carbon

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

*  DD  PROCESSES AND PRODUCTS {7}
164  DF  .~ Electrostatic field or electrical discharge {6}
173.~.~ Carbon

DEFINITION

Classification: 204/173

(under subclass 164) Processes directed to the production of carbon.

(1) Note. Carbon may be incidentally produced in the processes classified in this class, subclass 165 and indented subclasses.

(2) Note. See 423, Chemistry of Inorganic Compounds, subclasses 445+ for nonelectrolytic processes of forming carbon.