US PATENT SUBCLASS 502 / 238
.~.~.~.~ Of Group III metal (i.e., Sc, Y, Al, Ga, In or Tl)

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}
233  DF  .~.~ Forming silica gel {2}
237  DF  .~.~.~ Metal, metal oxide, or metal hydroxide containing {2}
238.~.~.~.~ Of Group III metal (i.e., Sc, Y, Al, Ga, In or Tl)

DEFINITION

Classification: 502/238

Of Group III metal (i.e., Sc, Y, Al, Ga, In or Tl):

(under subclass 237) Process including a Group III or rare earth metal, metal oxide or hydroxide.