US PATENT SUBCLASS 204 / 178
.~.~.~ Arc or spark discharge

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}
177  DF  .~.~ Nitrogen compounds {1}
178.~.~.~ Arc or spark discharge {1}
179  DF  .~.~.~.~> Nitrogen oxides

DEFINITION

Classification: 204/178

(under subclass 177) Processes where the field employed comprises an electrical arc discharge.