Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7092340 | Playback apparatus | Juergen Becher, Dieter Bächer | 2006-08-15 |
| 6788634 | Playback apparatus | Juergen Becher, Dieter Bächer | 2004-09-07 |
| 6151580 | Audio playback apparatus | Dieter Bächer, Juergen Becher | 2000-11-21 |