Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6546346 | Method for determining the resonance frequency of an electric resonant circuit | Rüdiger Laubenstein, Ulrich Exner, Robert Kern | 2003-04-08 |
| 6356040 | Arrangement for determining the state of a high-pressure gas discharge lamp on switching-on | Karl-Heinrich Preis, Stefan Koch, Klaus Eckert | 2002-03-12 |