US PATENT SUBCLASS 502 / 425
.~.~.~.~ Phosphorus 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}
416  DF  .~ Free carbon containing {3}
418  DF  .~.~ Process utilizing solid or liquid source carbonizable material, or product thereof {9}
423  DF  .~.~.~ Adding nongaseous inorganic, or inorganic yielding component, prior to or during process {4}
425.~.~.~.~ Phosphorus containing


DEFINITION

Classification: 502/425

Phosphorus containing:

(under subclass 423) Subject matter in which the inorganic component includes element number 15.