US PATENT SUBCLASS 502 / 414
.~ Aluminum containing

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

400  DF  SOLID SORBENT {6}
414.~ Aluminum containing {1}
415  DF  .~.~> Alumina (i.e., dialuminum trioxide)

DEFINITION

Classification: 502/414

Aluminum containing:

(under subclass 400) Composition including element number 13, free or chemically combined.