US PATENT SUBCLASS 502 / 65
.~.~.~ And rare earth metal (Sc, Y or Lanthanide)containing

Current as of: June, 1999
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502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

60  DF  ZEOLITE OR CLAY, INCLUDING GALLIUM ANALOGS {13}
63  DF  .~ And additional AL or Si containing component {2}
64  DF  .~.~ Zeolite {7}
65.~.~.~ And rare earth metal (Sc, Y or Lanthanide)containing

DEFINITION

Classification: 502/65

And rare earth metal (Sc, Y or Lanthanide) containing:

(under subclass 64) Composition which includes scandium, yttrium, or a lanthanide.