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:
Dec. 01, 2009
Filed:
Aug. 30, 2005
Steven G. Goebel, Victor, NY (US);
Chunxin Ji, Rochester, NY (US);
Jeanette E. O'hara, Honeoye, NY (US);
Steven G. Goebel, Victor, NY (US);
Chunxin Ji, Rochester, NY (US);
Jeanette E. O'Hara, Honeoye, NY (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A diffusion media and micro-porous media combination for a fuel cell. A diffusion layer is composed of a diffusion media and has a first (electrode) side and an opposite second (flowfield) side, wherein at least one of the first and second sides has a geometric pattern formed therein comprising a multiplicity of mutually spaced apart regions. A micro-porous media fills the multiplicity of regions and a micro-porous layer composed of the micro-porous media is continuously applied to the first surface.