Chemistry: electrical current producing apparatus – product – and – Having earth feature
Reexamination Certificate
2005-03-01
2005-03-01
Bell, Bruce F. (Department: 1746)
Chemistry: electrical current producing apparatus, product, and
Having earth feature
C429S006000, C429S231800
Reexamination Certificate
active
06861173
ABSTRACT:
A membrane electrode assembly comprising an ionically conductive member and an electrode, wherein the electrode is a smooth, continuous layer that completely covers and supports the ionically conductive member. The electrode further comprises a central region and a peripheral region, wherein a gradient of electrochemically active material exists between the central region and the peripheral region such that a content of the electrochemically active material is greater in the central region than the peripheral region.
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International Search Report issued by the ISA/US dated Mar. 19, 2004.
Bhaskar Sompalli
Gasteiger Hubert
Litteer Brian A.
Bell Bruce F.
Brooks, Esq. Cary W.
Deschere, Esq. Linda M.
Wills Monique
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