US PATENT SUBCLASS 502 / 2
.~ With structure having utility in addition to support or carrier

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

1  DF  HAVING FOREIGN OR DIVERSE FUNCTION (E.G., PREVENT CORROSION, ETC.) {1}
2.~ With structure having utility in addition to support or carrier

DEFINITION

Classification: 502/2

With structure having utility in addition to support or carrier:

(under subclass 1) Composition having a shape or dimension serving a purpose other than as a carrier for or to enhance the surface contact area of catalytic or sorbent material.

(1) Note. This subclass provides for a nominally claimed (a) self cleaning oven wall or (b) exhaust muffler with catalytic activity.

(2) Note. The foreign or diverse function is usually provided by the physical form of the composition in this subclass, while the other function in subclass 1 is usually due to the chemical nature of the composition.