Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6696791 | Method for starting a discharge lamp | Bernhard Reiter | 2004-02-24 |
| 6611112 | Appliance for discharge lamps with reliable starting | Bernhard Reiter | 2003-08-26 |
| 6381551 | Method for providing an output signal having a desired value of a characteristic quantity at the output of a switched-mode power supply unit and circuit for carrying out the method | — | 2002-04-30 |
| 6316888 | Ballast for at least one gas discharge lamp and method for operating such a ballast | — | 2001-11-13 |
| 6266256 | Circuit for correcting the power factor | Klaus Lehnert, Henry Gueldner | 2001-07-24 |
| 6208085 | Circuit for power-factor correction | Klaus Lehnert, Henry Gueldner | 2001-03-27 |
| 5883472 | Circuit for operating a discharge lamp | — | 1999-03-16 |
| 5740021 | Switching power supply for the operation of electric lamps | Reinhard Lecheler | 1998-04-14 |