US PATENT SUBCLASS 502 / 205
.~.~.~ And bismuth containing

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  DF  .~.~ And Group VI metal containing (i.e., Cr, Mo, W or Po) {2}
205.~.~.~ And bismuth containing

DEFINITION

Classification: 502/205

And bismuth containing:

(under subclass 204) Composition which also includes element number 83.

(1) Note. The Bismuth may be combined with either or both the boron or group VI metal.