4. Chemistry: electrical current producing apparatus, product, and
  5. Current producing cell, elements, subcombinations and...
  6. Plural cells

David W. Schumaker

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Active electrode composition with nonfilbrillating binder

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Reexamination Certificate

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Active material for fuel cell anodes incorporating an...

Chemistry: electrical current producing apparatus – product – and – Having earth feature
Reexamination Certificate

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Air breathing fuel cell having bi-cell unit cells

Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Reexamination Certificate

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Alkaline fuel cell

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate

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Apparatus for refueling on-board metal hydride hydrogen...

Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including heat exchanger for reaction chamber or reactants...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2040821

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