US PATENT SUBCLASS 502 / 230
.~.~.~ Platinum group (i.e., Ru, Rh, Pd, Os, Ir or Pt)

Current as of: June, 1999
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502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

100  DF  CATALYST OR PRECURSOR THEREFOR {12}
224  DF  .~ Halogen or compound containing same {6}
229  DF  .~.~ And Group VIII metal (i.e., iron or platinum group) {1}
230.~.~.~ Platinum group (i.e., Ru, Rh, Pd, Os, Ir or Pt)

DEFINITION

Classification: 502/230

Platinum group (i.e., Ru, Rh, Pd, Os, Ir or Pt):

(under subclass 229) Composition in which the metal is element number 44, 45, 46, 76, 77, or 78.