4. Electricity: electrical systems and devices
  5. Control circuits for electromagnetic devices
  6. Systems for magnetizing, demagnetizing, or controlling the...

David Huddart

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Accessory interface bus for telephone headset adapter

Multiplex communications – Channel assignment techniques – Details of circuit or interface for connecting user to the...
Reexamination Certificate

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Heating vessel with chromium-enriched stainless steel substrate

Electric resistance heating devices – Heating devices – Continuous flow type fluid heater
Patent

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Inductive charging system

Electricity: battery or capacitor charging or discharging – Cell or battery charger structure – Charger inductively coupled to cell or battery
Reexamination Certificate

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Self-configuring telephone interface unit

Telephonic communications – Substation or terminal circuitry – Conversion of signal form
Patent

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Solenoid drive circuit

Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...
Patent

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Profile ID: LFUS-PAI-P-254170

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