Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6414459 | Method for influencing the electrical power of a load with a pulse width modulated signal | Karl-Heinrich Preis | 2002-07-02 |
| 6150914 | Transformer with divided primary winding used in a blocking-oscillator supply circuit | Robert Kern, Johann Freundorfer | 2000-11-21 |
| 6005302 | Fixed-cycle power-supply circuit with an at least temporarily active consumer-independent load | Karl-Heinrich Preis, Klaus Eckert, Robert Kern, Gerhard Decker | 1999-12-21 |
| 5965986 | Arrangement for detecting the ignition of a high-pressure gas discharge lamp | Klaus Eckert, Robert Kern | 1999-10-12 |
| 5818205 | Voltage transformer | Manfred Knuetel | 1998-10-06 |