Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8698415 | Current supply for luminescent diodes | Michael Zimmermann, Stefan Tasch | 2014-04-15 |
| 8207689 | Current supply for luminescent diodes | Michael Zimmermann, Stefan Tasch | 2012-06-26 |
| 8063575 | Current supply for luminescent diodes | Michael Zimmermann, Stefan Tasch | 2011-11-22 |
| 7708447 | Current supply for luminescent diodes | Michael A. Zimmerman, Stefan Tasch | 2010-05-04 |
| 6426597 | Circuit arrangement for operating gas discharge lamps | Urs Rast, Martin Huber | 2002-07-30 |
| 5563477 | Method for operating a ballast for discharge lamps | Thomas Ribarich | 1996-10-08 |
| 5550433 | Driver circuit for discharge lamps | — | 1996-08-27 |
| 5504399 | Electrical circuit for operating a fluorescent lamp and for measuring the lamp current | — | 1996-04-02 |
| 5455486 | Method and circuitry for igniting fluorescent lamps at a predetermined temperature of their cathodes | — | 1995-10-03 |