Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8941334 | Method and operating device for minimizing the insulation stress of a high-pressure discharge lamp system | Joachim Mühlschlegel | 2015-01-27 |
| 8760069 | Circuit arrangement and method for operating a high pressure discharge lamp | Walter Limmer, Maximilian Schmidl | 2014-06-24 |
| 8618739 | Circuit arrangement and method for operating discharge lamps | Walter Limmer, Maximilian Schmidl | 2013-12-31 |
| 8531122 | Circuit arrangement and method for operation of a discharge lamp | Walter Limmer, Maximilian Schmidl | 2013-09-10 |
| 8492994 | Method and circuit arrangement for making a lamp wattage available for operating at least one gas discharge lamp | Walter Limmer, Maximilian Schmidl | 2013-07-23 |
| 8089220 | Circuit arrangement and method for operating a high-pressure discharge lamp | Walter Limmer, Joachim Mühlschlegel | 2012-01-03 |
| 7541744 | Electronic ballast for a high-pressure discharge lamp having a current-measuring device | Walter Limmer, Joachim Mühlschlegel, Markus Ziegler | 2009-06-02 |
| 7145293 | Electronic ballast having resonance excitation for generating a transfer voltage | Young G. Kang, Walter Limmer, Joachim Mühlschlegel | 2006-12-05 |
| 7116084 | Step-up converter having power factor correction | Walter Limmer, Joachim Mühlschlegel | 2006-10-03 |
| PP15261 | Apple tree named ‘Brak’ | — | 2004-10-26 |