Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7542750 | Diversity system with identification and evaluation of antenna properties | — | 2009-06-02 |
| 7539469 | Input control system for high frequency receiver | Achim Ratzel, Stefan Köhler | 2009-05-26 |
| 7457598 | Signal amplifier system for a broadcast receiver | Stefan Köhler | 2008-11-25 |
| 7136114 | Television receiver with dynamically adjustable filtering | Erich Geiger | 2006-11-14 |
| 7034898 | Mobile television receiver | Stefan Koehler, Erich Geiger, Hermann Link | 2006-04-25 |
| 5173768 | Adaptive PAL - or NTSC - comb filter | Helmut Sowig | 1992-12-22 |