US PATENT SUBCLASS 423 / 444
.~.~.~ By reacting free carbon

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

414  DF  CARBON OR COMPOUND THEREOF {3}
439  DF  .~ Binary compound (e.g., carbide, etc.) {3}
443  DF  .~.~ Disulfide {1}
444.~.~.~ By reacting free carbon

DEFINITION

Classification: 423/444

(under subclass 443) Processes which include the step of reacting elemental carbon.