Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Electrical current collector
Reexamination Certificate
2011-05-31
2011-05-31
Yuan, Dah-Wei D (Department: 1727)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Electrical current collector
C429S518000, C429S514000, C427S115000
Reexamination Certificate
active
07951510
ABSTRACT:
A bipolar plate for use in a proton exchange membrane fuel cell having an electrically conductive polymer coated on at least one region of a surface of the plate in contact with a flow field. The coated region is hydrophobic or hydrophilic as compared to an uncoated region of the surface to prevent liquid accumulation. Electroconductive polymer coatings are applied by electrochemical polymerization.
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JP 2002-008685, Hayahi, Tatsuya, Jan. 2002, machine translation.
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Letter from China Patent Agent dated Jul. 2, 2010, referring to First Office Action which cites CN1416604.
Brady Brian K
Falta Steven R
Ji Chunxin
Trabold Thomas A
GM Global Technology Operations LLC
Laios Maria J
Yuan Dah-Wei D
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