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.

Date of Patent:
Jul. 11, 2006

Filed:

Dec. 29, 2004
Applicants:

Hee-woo Rhee, Seoul, KR;

Min-kyu Song, Seoul, KR;

Young-taek Kim, Gyeonggi-do, KR;

Seung Bae Park, Seoul, KR;

Jin Ho Park, Seoul, KR;

Inventors:

Hee-Woo Rhee, Seoul, KR;

Min-Kyu Song, Seoul, KR;

Young-Taek Kim, Gyeonggi-do, KR;

Seung Bae Park, Seoul, KR;

Jin Ho Park, Seoul, KR;

Assignees:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a composite ion-exchange membrane that can exhibit good conductivity at high temperatures, methods to produce the polymer membrane, membrane-electrode assemblies that comprise one or more of such polymers, and polymer electrolyte fuel cells that comprise one or more of such electrode assemblies.


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