Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Fuel cell with solid electrolyte
Reexamination Certificate
2011-08-09
2011-08-09
Rhee, Jane (Department: 1726)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Fuel cell with solid electrolyte
C429S491000, C429S493000, C429S494000, C429S479000, C521S025000, C521S027000
Reexamination Certificate
active
07993792
ABSTRACT:
Block copolymer that can be formed into an ion—Conductive membrane are provided. The block copolymer of the invention includes a first polymer block and a second polymer block attached to the first polymer block. The second polymer block has a main polymer chain and one or more side chains extending from the main polymer chain. The one or more side chains include at least one substitutent for proton transfer. Block copolymers utilizing phosphoric acid groups are also provided.
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Gross Markus
Maier Gerhard
Brooks & Kushman P.C.
GM Global Technology Operations LLC
Rhee Jane
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