Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9125277 | Retrofit lamp | — | 2015-09-01 |
| 6163114 | Starting circuit for low-pressure discharge lamp | Klaus Fischer | 2000-12-19 |
| 6057611 | Switching control of an operating circuit | — | 2000-05-02 |
| 5925984 | Circuit arrangement having LC parallel tuned drive circuitry | Klaus Fischer, Harald Schmitt, Peter Haeussinger, Walter Hirschmann | 1999-07-20 |
| 5349270 | Transformerless fluorescent lamp operating circuit, particularly for a compact fluorescent lamp, with phase-shifted inverter control | Ulrich Roll, Werner Bernhard | 1994-09-20 |