US PATENT SUBCLASS 502 / 523
MISCELLANEOUS SPECIFIC TECHNIQUES OF GENERAL APPLICABILITY


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

523MISCELLANEOUS SPECIFIC TECHNIQUES OF GENERAL APPLICABILITY


DEFINITION

Classification: 502/523

MISCELLANEOUS SPECIFIC TECHNIQUES OF GENERAL APPLICABILITY:

(under the class definition) Collection of art disclosing steps or methods which effect a useful or desirable property of function irrespective of the material acted upon.

(1) Note. This subclass includes treatments of catalysts, sorbent and/or supports in general such as methods of coating, activating mixing, conditioning or increasing surface area. An example is patent no. 513,109 disclosing a method of applying a myriad of catalytic material on various supports.