Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6774768 | System and method for cycling a metal-halide lamp on and off at designated intervals to reduce risk of arc tube rupture | — | 2004-08-10 |
| 6731080 | Multiple ballast and lamp control system for selectively varying operation of ballasts to distribute burn times among lamps | — | 2004-05-04 |
| 6724155 | Lamp ignition circuit for lamp driven voltage transformation and ballasting system | Christopher Hudson | 2004-04-20 |