US PATENT SUBCLASS 44 / 599
.~.~ With chemical reaction (e.g., carbonizing.etc.)


Current as of: June, 1999
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44 /   HD   FUEL AND RELATED COMPOSITIONS

550  DF  CONSOLIDATED SOLIDS (E.G., BRIQUETTE, ETC.) {5}
593  DF  .~ Consolidation process using specified condition or technique {5}
599.~.~ With chemical reaction (e.g., carbonizing.etc.)


DEFINITION

Classification: 44/599

With chemical reaction (e.g., carbonizing, etc.):

(under subclass 593) Subject matter in which the condition or technique involves a chemical reaction to produce a compound or a material in elemental form not present in the composition before the reaction, for example, reducing a carbon compound to elemental carbon.

SEE OR SEARCH CLASS

201, Distillation: Process, Thermolytic, appropriate subclasses for the high-temperature treatment of carbonaceous materials to produce coke or charcoal along with recoverable gases or vapors.

208, Mineral Oils: Processes and Products,

50+, for a plural-conversion mineral-oil treating process which includes coking.

264, Plastic and Nonmetallic Article Shaping or Treating: Processes,

29.1+, for a process of that class which includes carbonizing to form an article.