US PATENT SUBCLASS 502 / 228
.~.~ And Group VI metal (i.e., Cr, Mo, W or Po)

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}
228.~.~ And Group VI metal (i.e., Cr, Mo, W or Po)

DEFINITION

Classification: 502/228

And Group VI metal (i.e., Cr, Mo, W or Po):

(under subclass 224) Composition including a metal of Group VI as listed at the beginning of the schedule, free or chemically combined.