Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6431308 | High fidelity small omnidirectional loudspeaker | Edward Vollmer | 2002-08-13 |
| 6186269 | Mini surround sound loudspeaker | Edward Vollmer | 2001-02-13 |
| 5847331 | Omnidirectional loudspeaker | Edward Vollmer | 1998-12-08 |