Chemistry: electrical current producing apparatus – product – and – Having earth feature
Reexamination Certificate
2005-09-06
2005-09-06
Ruthkosky, Mark (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Having earth feature
C429S047000, C429S231500
Reexamination Certificate
active
06939640
ABSTRACT:
Disclosed are electrocatalyst compositions useful for fuel cells comprising tungsten and molybdenum carbides and/or oxycarbides, or their mixtures in combination with noble metals, such as platinum and ruthenium; and a metal selected from the group consisting of V, Nb, Ta, Cr, Mn, Fe, Re, Co, Ni, Cu, and mixtures thereof.
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E. I. DuPont de Nemours and Company
Ruthkosky Mark
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