Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4491766 | High pressure electric discharge lamp employing a metal spiral with positive potential | — | 1985-01-01 |
| 4437039 | Starting arrangement for high-intensity-discharge sodium lamp | — | 1984-03-13 |
| 4360758 | High-intensity-discharge lamp of the mercury-metal halide type which efficiently illuminates objects with excellent color appearance | William A. Thornton, Jr., Edward Chen | 1982-11-23 |
| 4341978 | High-intensity-discharge lamp with improved color rendition of illuminated objects | William A. Thornton, Jr. | 1982-07-27 |
| 4258288 | Resistor-aided starting of metal halide lamps | Jacob F. Michael | 1981-03-24 |
| 4191910 | Starting arrangement for high pressure discharge sodium lamp | — | 1980-03-04 |
| 4182976 | High pressure sodium vapor lamp with voltage rise compensator | — | 1980-01-08 |