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:
May. 31, 2011
Filed:
Nov. 11, 2004
Chunxin Ji, Rochester, NY (US);
Steven R Falta, Honeoye Falls, NY (US);
Thomas a Trabold, Pittsford, NY (US);
Brian K Brady, North Chili, NY (US);
Chunxin Ji, Rochester, NY (US);
Steven R Falta, Honeoye Falls, NY (US);
Thomas A Trabold, Pittsford, NY (US);
Brian K Brady, North Chili, NY (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A bipolar plate for use in a proton exchange membrane fuel cell having an electrically conductive polymer coated on at least one region of a surface of the plate in contact with a flow field. The coated region is hydrophobic or hydrophilic as compared to an uncoated region of the surface to prevent liquid accumulation. Electroconductive polymer coatings are applied by electrochemical polymerization.