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:
Apr. 18, 2006
Filed:
Aug. 27, 2002
Applicants:
Jongok Won, Incheon, KR;
Yong Soo Kang, Seoul, KR;
In-hwan OH, Seoul, KR;
Heung Yong Ha, Seoul, KR;
Sangwook Choi, Seoul, KR;
Jee Won Choun, Seoul, KR;
Bum-suk Jung, Seoul, KR;
Inventors:
Jongok Won, Incheon, KR;
Yong Soo Kang, Seoul, KR;
In-Hwan Oh, Seoul, KR;
Heung Yong Ha, Seoul, KR;
Sangwook Choi, Seoul, KR;
Jee Won Choun, Seoul, KR;
Bum-Suk Jung, Seoul, KR;
Assignee:
Korea Institute of Science Technology, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An ion exchange composition membrane is made up of dispersed natural clay and/or organized clay in ion conducting polymeric film as a methanol barrier material. The membrane exhibits low methanol crossover, high proton conductivity and is thus suitable for use in direct methanol fuel cells with low costal advantage.