Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12399258 | Light emitting device | — | 2025-08-26 |
| 8013508 | High-pressure discharge lamp | Dirk Grundmann, Matthias Lau, Andreas Naujoks, Melanie Roth | 2011-09-06 |
| 6323604 | Circuit arrangement, an assigned electrical system and a discharge lamp with such a circuit arrangement, and a method for operating it | Klaus Guenther | 2001-11-27 |
| 6184635 | Circuit arrangement for starting and for operating high-pressure lamps | — | 2001-02-06 |
| 5739644 | Discharge lamp typically a sodium high-pressure discharge lamp, from an a-c power network | Franz Bernitz, Andreas Huber, Guenther Hirschmann | 1998-04-14 |
| 5483126 | Method of controlling the color temperature in a sodium high-pressure discharge lamp, and apparatus to carry out the method | Klaus Guenther, Hans-Georg Kloss, Teja Tehmann | 1996-01-09 |
| 5481162 | Method of supplying current to a sodium high-pressure discharge lamp, and current supply system | Klaus Guenther, Hans-Georg Kloss, Teja Lehmann | 1996-01-02 |