US PATENT SUBCLASS 423 / 508
SELENIUM OR TELLURIUM OR COMPOUND THEREOF

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

508SELENIUM OR TELLURIUM OR COMPOUND THEREOF {2}
509  DF  .~> Binary compound
510  DF  .~> Elemental selenium or tellurium

DEFINITION

Classification: 423/508

(under the class definition) Products and processes wherein the product is either selenium or tellurium, or a compound thereof.

SEE OR SEARCH CLASS

588, Hazardous or Toxic Waste Destruction or Containment, appropriate subclasses for the destruction or containment of hazardous or toxic waste containing Se or Te.