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. 31, 2012
Filed:
Apr. 04, 2007
Gayatri Vyas Dadheech, Rochester Hills, MI (US);
Richard H. Blunk, Macomb Township, MI (US);
Thomas A. Trabold, Pittsford, NY (US);
Reena L. Datta, Rochester, NY (US);
Keith E. Newman, Pittsford, NY (US);
Gayatri Vyas Dadheech, Rochester Hills, MI (US);
Richard H. Blunk, Macomb Township, MI (US);
Thomas A. Trabold, Pittsford, NY (US);
Reena L. Datta, Rochester, NY (US);
Keith E. Newman, Pittsford, NY (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
Methods and materials to improve water management in a fuel cell by microtexturing fuel cell elements, including the separator plate and/or the gas diffusion media. A method of manufacturing a fuel cell includes a separator plate and/or a gas diffusion media that are microtextured. Selective ablation of material and stamping can impart microtexturing, where the microtexturing facilitates water management in the fuel cell.