US PATENT SUBCLASS 502 / 214
.~.~ And silicon containing

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

100  DF  CATALYST OR PRECURSOR THEREFOR {12}
208  DF  .~ Phosphorus or compound containing same {4}
214.~.~ And silicon containing

DEFINITION

Classification: 502/214

And silicon containing:

(under subclass 208) Composition which includes element number 14, free or combined.