US PATENT SUBCLASS 502 / 237
.~.~.~ Metal, metal oxide, or metal hydroxide 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}
232  DF  .~ Silicon containing or process of making {2}
233  DF  .~.~ Forming silica gel {2}
237.~.~.~ Metal, metal oxide, or metal hydroxide containing {2}
238  DF  .~.~.~.~> Of Group III metal (i.e., Sc, Y, Al, Ga, In or Tl)
239  DF  .~.~.~.~> Of Group IV metal (i.e., Ti, Zr, Hf, Ge, Sn or Pb)

DEFINITION

Classification: 502/237

Metal, metal oxide, or metal hydroxide containing:

(under subclass 233) Process wherein the precipitation is effected in the presence of a metal, metal oxide or hydroxide or the metal or metal compound is added subsequently to the precipitation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

240, for a particular metal, metal oxide or hydroxide with silica, per se.