Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9686827 | Circuit arrangement for operating light sources | Markus Heckmann, Thomas Pollischansky, Harald Schmitt | 2017-06-20 |
| 8941334 | Method and operating device for minimizing the insulation stress of a high-pressure discharge lamp system | Alois Braun | 2015-01-27 |
| 8841829 | Lamp holder and lamp base for a gas discharge lamp | Bernd Koch | 2014-09-23 |
| 8283872 | Circuit arrangement and method for the operation of high-pressure gas discharge lamps | Warren P. Moskowitz | 2012-10-09 |
| 8089220 | Circuit arrangement and method for operating a high-pressure discharge lamp | Alois Braun, Walter Limmer | 2012-01-03 |
| 7898186 | Circuit arrangement and method for the operation of a high-pressure gas discharge lamp | — | 2011-03-01 |
| 7859192 | Method for operating high-pressure lamps without hotstarting and luminaire having two high-pressure discharge lamps | — | 2010-12-28 |
| 7541744 | Electronic ballast for a high-pressure discharge lamp having a current-measuring device | Alois Braun, Walter Limmer, Markus Ziegler | 2009-06-02 |
| 7145293 | Electronic ballast having resonance excitation for generating a transfer voltage | Alois Braun, Young G. Kang, Walter Limmer | 2006-12-05 |
| 7116084 | Step-up converter having power factor correction | Alois Braun, Walter Limmer | 2006-10-03 |