US PATENT SUBCLASS 502 / 254
.~.~.~ Of Group VI (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}
232  DF  .~ Silicon containing or process of making {2}
240  DF  .~.~ With metal, metal oxide, or metal hydroxide {8}
254.~.~.~ Of Group VI (i.e., Cr, Mo, W or Po) {2}
255  DF  .~.~.~.~> Molybdenum
256  DF  .~.~.~.~> Chromium {1}

DEFINITION

Classification: 502/254

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

(under subclass 240) Composition including a group VI metal, metal oxide or hydroxide.