US PATENT SUBCLASS 502 / 426
.~.~.~.~ Acid


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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}
426.~.~.~.~ Acid


DEFINITION

Classification: 502/426

Acid:

(under subclass 423) Subject matter in which the inorganic component is a proton denor.