Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D656911 | Receiver, amplifier and speaker unit | Thomas J. Koller | 2012-04-03 |
| 7999226 | Infrared sensor assembly and speaker support | Thomas J. Koller | 2011-08-16 |
| D566685 | Combined wireless receiver, amplifier and speaker | Thomas J. Koller | 2008-04-15 |
| D558742 | Wireless microphone | Thomas J. Koller | 2008-01-01 |