4. Hydraulic and earth engineering
  5. Fluid control, treatment, or containment
  6. Flow control

Robert Darling

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Flood barrier system

Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Patent

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Non-circulating coolant PEM fuel cell power plant assembly...

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

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Non-circulating coolant PEM fuel cell power plant with...

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

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PEM fuel cell system with a porous hydrophobic gas venting...

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for control of operation
Reexamination Certificate

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PEM fuel cell system with a porous hydrophobic plug for...

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Means for joining components together
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1602123

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