Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4994716 | Circuit arrangement for starting and operating gas discharge lamps | Hans G. Ganser, Hans Peter Stormberg | 1991-02-19 |
| 4891563 | Circuit arrangement for adjusting the operating voltage of high-pressure gas discharge lamps | Hans G. Ganser, Hans Peter Stormberg | 1990-01-02 |
| 4888524 | Circuit for operating gas discharge lamps with a periodically alternating lamp current | Hans G. Ganser, Hans Peter Stormberg | 1989-12-19 |
| 4839560 | Heatable electrode for high-pressure gas discharge lamps | Hans G. Ganser, Hans Peter Stormberg | 1989-06-13 |
| 4816721 | Circuit arrangement for operating a high-pressure gas discharge lamp | Hans G. Ganser, Hans Peter Stormberg | 1989-03-28 |
| 4812736 | Circuit arrangement for operating high-pressure gas discharge lamps | Manfred Albach, Hans Peter Stormberg, Armin Wegener | 1989-03-14 |
| 4795943 | High-pressure sodium vapor discharge lamp | Petrus H. Antonis, Lodewijk H. M. Meessen | 1989-01-03 |
| 4748381 | Circuit arrangement for A.C. operation of gas discharge lamps | Hans G. Ganser, Hans Peter Stormberg | 1988-05-31 |
| 4714862 | Circuit arrangement for igniting and operating gas discharge lamps | Horst Dannert, Hans G. Ganser, Hans Peter Stormberg | 1987-12-22 |
| 4644216 | High-pressure discharge lamp | Hans Peter Stormberg | 1987-02-17 |
| 4594531 | Circuit arrangement for operating high-pressure gas discharge lamps | Hans G. Ganser, Hans Peter Stormberg | 1986-06-10 |
| 4539513 | Circuit arrangement for starting and operating a high-pressure gas discharge lamp | Hans G. Ganser, Hans Peter Stormberg | 1985-09-03 |