U.S. Utility Patents
7,053,540- Energy Efficient Compact Fluorescent Lamp
5,982,106 - Self- Protected Series Resonant Electronic Energy Converter
5,801,492 - Electronic Ballast for Gas Discharge Lamp Having Primary and Auxiliary Resonant Circuits
5,502,635 - Parallel Resonant Integrated Inverter Ballast for Gas Discharge Lamps
5,448,137 - Electronic Energy Converter Having Two Resonant Circuits
5,436,529 - Control and Protection Circuit for Electronic Ballast
5,434,480 - Electronic Device for Powering a Gas Discharge Load from a Low Frequency Source
5,371,438 - Energy Conversion Device with DC Input Terminal for Delivering a High Freq. Signal