4. Chemistry: electrical current producing apparatus, product, and
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Anode tail gas recycle cooler and re-heater for a solid...

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for control of operation
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Anode-supported fuel cell

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Means for joining components together
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Apparatus and method for determining deterioration of a fuel...

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for control of operation
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Apparatus for hydrogen-air mixing in a fuel cell assembly...

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Grouping of fuel cells into stack or module
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Apparatus for hydrogen-air mixing in a fuel cell assembly...

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Grouping of fuel cells into stack or module
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Apparatus for solid-oxide fuel cell shutdown having a timing...

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for control of operation
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Apparatus for the deionization of cooling media for fuel cells

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for control of operation
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Articles of clothing and personal gear with on-demand power...

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or...
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Assisted stack anode purge at start-up of fuel cell system

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for control of operation
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Atmosphere open type fuel cell

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Means for joining components together
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Avoiding coolant slump into reactant fields during PEM fuel...

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for control of operation
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Balanced hydrogen feed for a fuel cell

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Means for distributing – storing – or preventing fluid movement
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Battery mounting and testing method

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for producing – recycling – or treating...
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Biofuel cell

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Biochemical fuel cell
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Biological fuel cell and methods

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Biochemical fuel cell
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Biological fuel cell and methods

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Biochemical fuel cell
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Bipolar plate and direct liquid feed fuel cell stack

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Means for distributing – storing – or preventing fluid movement
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Bipolar plate for fuel cell with deformed metal distribution...

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Means for distributing – storing – or preventing fluid movement
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Bipolar plate for fuel cell, comprising sealing ribs

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Means for joining components together
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Bipolar plate hydrophilic treatment for stable fuel cell...

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Grouping of fuel cells into stack or module
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