LandOfFree - US Patents - Listing for Electric lamp and discharge devices: systems,With cathode or cathode heater supply circuit

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Method for operation of a cathode using the tunnelling effect an

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit

Patent

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Method for powering a control circuit for a gas discharge...

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit

Reexamination Certificate

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Method for pre-heating a gas-discharge lamp

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit

Patent

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Method for starting a discharge lamp

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit

Reexamination Certificate

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Method for starting and operating a preheat type fluorescent lam

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Pulsating or a.c. supply to the cathode or heater circuit

Patent

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Method of dimensioning and operating a low pressure discharge la

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Plural load device systems

Patent

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Method of flicker-free lighting hot-cathode low-pressure rare ga

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit

Patent

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Microwave generator apparatus comprising controller for automati

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit

Patent

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Microwave oven and method for controlling voltage thereof

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Pulsating or a.c. supply to the cathode or heater circuit

Reexamination Certificate

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Modified impedance rapid start fluorescent lamp system

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Plural cathodes or heaters in the load device

Patent

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Multiple filament enhanced ion source

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit

Patent

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