US PATENT SUBCLASS 502 / 204
.~.~ And Group VI metal containing (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}
202  DF  .~ Boron or compound containing same {3}
204.~.~ And Group VI metal containing (i.e., Cr, Mo, W or Po) {2}
205  DF  .~.~.~> And bismuth containing
206  DF  .~.~.~> Molybdenum containing

DEFINITION

Classification: 502/204

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

(under subclass 202) Composition in which there is a Group VI metal free or chemically combined.