4. Power plants
  5. Internal combustion engine with treatment or handling of...
  6. Having sensor or indicator of malfunction, unsafeness, or...

Jeffry A. Helmick

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Current control method for an oxygen sensor heater

Electric heating – Heating devices – With power supply and voltage or current regulation or...
Reexamination Certificate

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Exhaust system monitoring methods and systems

Power plants – Internal combustion engine with treatment or handling of... – Having sensor or indicator of malfunction – unsafeness – or...
Reexamination Certificate

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Post oxygen sensor performance diagnostic with minimum air flow

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2281594

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