Chemistry: electrical current producing apparatus – product – and – Having earth feature
Reexamination Certificate
2005-08-25
2008-10-14
Bos, Steven (Department: 1793)
Chemistry: electrical current producing apparatus, product, and
Having earth feature
C502S308000, C502S313000, C502S315000, C420S432000, C420S580000
Reexamination Certificate
active
07435504
ABSTRACT:
The present teachings are directed toward electrocatalyst compositions of alloys of platinum, tungsten and one of either of nickel or zirconium for use in fuel cells. The alloys consists essentially of platinum present in an atomic percentage ranging between about 20 percent and about 45 percent, tungsten present in an atomic percentage ranging between about 30 percent and about 70 percent, and one of either nickel present in an atomic percentage ranging between about 5 percent and about 25 percent, or zirconium present in an atomic percentage ranging between about 5 percent and about 40 percent.
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He Ting
Kreidler Eric Rolland
Bos Steven
Burkholder Samuel P.
Duell Mark E.
Honda Motor Co. Ltd.
Zimmer Anthony J
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