US PATENT SUBCLASS 502 / 307
.~.~.~.~ Zinc


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}
300  DF  .~ Metal, metal oxide or metal hydroxide {10}
305  DF  .~.~ Of Group VI (i.e., Cr, Mo, W or Po) {8}
306  DF  .~.~.~ And Group II metal containing (i.e., alkaline earth, Be, Mg, Zn, Cd or Hg) {1}
307.~.~.~.~ Zinc


DEFINITION

Classification: 502/307

Zinc:

(under subclass 306) Composition in which the additional metal is element number 30.