Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method
Reexamination Certificate
2007-04-10
2007-04-10
Choi, Ling-Siu (Department: 1713)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Include electrolyte chemically specified and method
C429S006000, C429S317000, C526S287000, C526S316000, C526S307500, C526S348100
Reexamination Certificate
active
10438186
ABSTRACT:
This invention relates to sulfonated copolymers which are useful in forming polymer electrolyte membranes used in fuel cells.
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Cao Shuguang
Chen Jian Ping
Jeanes Thomas
Nam Kie Hyun
Olmeijer David
Choi Ling-Siu
Dorsey & Whitney LLP
Polyfuel, Inc.
Trecartin Richard F.
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