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:
Oct. 23, 2007
Filed:
Oct. 30, 2003
Applicants:
Steven J. Hamrock, Stillwater, MN (US);
Linda M. Rivard, Stillwater, MN (US);
Michael A. Yandrasits, Hastings, MN (US);
Daniel M. Pierpont, North Saint Paul, MN (US);
Inventors:
Steven J. Hamrock, Stillwater, MN (US);
Linda M. Rivard, Stillwater, MN (US);
Michael A. Yandrasits, Hastings, MN (US);
Daniel M. Pierpont, North Saint Paul, MN (US);
Assignee:
3M Innovative Properties Company, Saint Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/10 (2006.01); C08J 5/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
Polymer electrolyte membranes such as are used in fuel cells are provided along with methods of their manufacture. The polymer electrolyte membranes comprise polymers or blends of polymers having an equivalent weight of less than 1200 and a Tg of between 101° C. and 155° C.