Impedance matching apparatus for connecting high frequency...

Impedance matching circuit for an electrodeless flourescent...

Impedance varying device for microwave oven

Impingement/ convection/ microwave oven and method

Improper load protection for induction heating appliance

Improved circuitry for portable lighting devices and...

Improved control system for electric arc furnace

Improved dielectric heating using inductive coupling

Improved dimmer circuit arrangement

Improved energy / heat exchange chamber

Improved half-bridge control of fluorescent lamps

Improved hot wire control apparatus and method

Improved immersion heating element with highly thermally...

Improved insulator support structure for a heater assembly

Improved led array

Improved light emitting diode

Improved light string and method of assembling thereof

Improved low loss ballast system

Improved method and circuit for controlling the electrical...

Improved methods for heating fluids