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:
Sep. 27, 2011
Filed:
Sep. 03, 2004
Applicants:
Felix Blank, Constance, DE;
Verena Graf, Blaustein, DE;
Cosmas Heller, Friedrichshafen, DE;
Martin Quintus, Goeppingen, DE;
Regina Wezel, Ulm, DE;
Inventors:
Felix Blank, Constance, DE;
Verena Graf, Blaustein, DE;
Cosmas Heller, Friedrichshafen, DE;
Martin Quintus, Goeppingen, DE;
Regina Wezel, Ulm, DE;
Assignee:
Daimler AG, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/10 (2006.01); H01M 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A membrane electrode assembly for a fuel cell having a polymer electrolyte membrane, having a layer sequence comprising an ion-conducting membrane (), a catalyst layer () and a gas diffusion layer (). A substantially catalyst-free, porous condensation layer () is arranged between the catalyst layer () and the membrane ().