Resonant load power supply with phase locked loop

Resonator ballast for arc discharge lamps

Respiratory humidifier

Restart circuit for multiple lamp electronic ballast

Reticulate heater

Reverse phase-controlled dimmer

Reversible heating device, in particular for insertion in a...

Reversible terminal block for immersion heater

Rf applicator for in situ heating

Rf fluorescent lighting

Rf induction heating circuits for float zone refining of...

Rf power transmission line for induction heated vapor source

Rf wireless remote-control brightness-adjustable...

Rfid-controlled smart induction range and method of cooking...

Ridged serpentine waveguide applicator

Robust electrical heating systems for mineral wells

Roll-to-roll fabricated light sheet and encapsulated...

Roll-up heating for a floor, or wall, electrical connector...

Room monitoring and lighting system

Rotary furnaces of the plasma-arc heating type