US PATENT SUBCLASS 423 / 22
.~ Platinum group metal (Ru, Rh, Pd, Os, Ir, or Pt)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

1  DF  TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND {15}
22.~ Platinum group metal (Ru, Rh, Pd, Os, Ir, or Pt)

DEFINITION

Classification: 423/22

(under subclass 1) Processes in which the compound comprises one of the metals known as the platinum group metals, i.e., ruthenium rhodium, palladium, osmium, iridium or platinum.

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 platinum group elements (ruthenium, rhodium, palladium, osmium, iridium, or platinum).