The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 2008
Filed:
Oct. 24, 2002
Applicant:
William George O'brien, Newark, DE (US);
Inventor:
William George O'Brien, Newark, DE (US);
Assignee:
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 35/00 (2006.01); B29C 59/00 (2006.01); B29C 41/24 (2006.01); H01M 4/88 (2006.01); H01M 8/10 (2006.01); H01M 4/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the production of catalyst coated membranes, especially catalyst coated membranes for use in fuel cells, that includes applying followed by drying of an electrocatalyst coating composition, a polymeric dispersion and a second electrocatalyst coating composition onto the surface of a temporary substrate, followed by separation of the temporary substrate.