Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5925984 | Circuit arrangement having LC parallel tuned drive circuitry | Klaus Fischer, Harald Schmitt, Ludwig Reiser, Peter Haeussinger | 1999-07-20 |
| 5461286 | Circuit arrangement for operating a low-pressure discharge lamp, typically a fluorescent lamp, from a low-voltage source | — | 1995-10-24 |
| 5122712 | Method and circuit to operate a low-pressure discharge lamp, particularly compact fluorescent lamp | — | 1992-06-16 |
| 4959591 | Rectifier-inverter circuit with low harmonic feedback, particularly for operation of fluorescent lamps | — | 1990-09-25 |
| 4862041 | Dimmable electronic transformer circuit | — | 1989-08-29 |
| 4782268 | Low-pressure discharge lamp, particularly fluorescent lamp high-frequency operating circuit with low-power network interference | Hans-Jurgen Fahnrich | 1988-11-01 |