United States Patent and Trademark Office

CPC	COOPERATIVE PATENT CLASSIFICATION

A	HUMAN NECESSITIES

B	PERFORMING OPERATIONS; TRANSPORTING

C	CHEMISTRY; METALLURGY

D	TEXTILES; PAPER

E	FIXED CONSTRUCTIONS

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING ENGINES OR PUMPS

G	PHYSICS

H	ELECTRICITY

Y	GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-OVER TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC

Last Modified: 4/16/2013 4:31:16 PM