Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6650514 | Protection circuit for a fluorescent lamp | — | 2003-11-18 |
| 6566822 | Electronic circuits for detecting filament breakage in gas discharge lamps | Klaus Schadhauser | 2003-05-20 |