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:
Jun. 26, 2007
Filed:
Dec. 16, 2003
Shanna D Knights, Burnaby, CA;
Jacob W DE Vaal, Coquitlam, CA;
Michael V Lauritzen, Burnaby, CA;
David P Wilkinson, North Vancouver, CA;
Shanna D Knights, Burnaby, CA;
Jacob W De Vaal, Coquitlam, CA;
Michael V Lauritzen, Burnaby, CA;
David P Wilkinson, North Vancouver, CA;
Ballard Power Systems Inc., Burnaby, CA;
Abstract
An electrochemical fuel cell stack comprises a plurality of fuel cell assemblies, wherein, each fuel cell assembly comprises a cell compressed between a pair of flow field plates, a perimeter seal circumscribing the cell and interposed between the pair of flow field plates, and a first diode, having an aspect ratio greater than 10:1, positioned adjacent to, and outside of, the perimeter seal along a first edge of the cell and interposed between the pair of flow field plates.