4. Chemistry: electrical current producing apparatus, product, and
  5. Fuel cell, subcombination thereof, or method of making or...
  6. Electrical current collector

Rolf R. Becker

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Electrochemical fuel cell comprised of a series of...

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

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Fuel cell bipolar plate and composition therefore

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Electrical current collector
Reexamination Certificate

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Water-soluble electrically conductive composition,...

Compositions – Electrically conductive or emissive compositions – Elemental carbon containing
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Water-soluble electrically insulative composition,...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
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Water-soluble electrically insulative composition,...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2225999

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