Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8247997 | Ballast with lamp filament detection | Uwe Liess | 2012-08-21 |
| 8212497 | Ballast with lamp-diagnostic filament heating, and method therefor | Uwe Liess | 2012-07-03 |
| 7348734 | Method for protecting a ballast from an output ground-fault condition | — | 2008-03-25 |
| 7218063 | Two light level ballast | John G. Konopka, Shashank Bakre, Himamshu Prasad | 2007-05-15 |
| 7187137 | Ballast with output ground-fault protection | — | 2007-03-06 |
| 7084579 | Two light level ballast | John G. Konopka, Shashank Bakre, Himamshu Prasad | 2006-08-01 |