Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694006 | Single switch ballast with integrated power factor correction | — | 1997-12-02 |
| 5691691 | Power-line communication system using pulse transmission on the AC line | Jeffrey D. Merwin | 1997-11-25 |
| 5608292 | Single transistor ballast with filament preheating | Dennis L. Stephens | 1997-03-04 |