Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7218749 | Method for sound reproduction and pillar loudspeaker | Tapani Hintsala | 2007-05-15 |
| 5714722 | Loudspeaker | — | 1998-02-03 |
| 5436808 | Headlamp | — | 1995-07-25 |
| 5293351 | Acoustic search device | — | 1994-03-08 |
| 4834089 | Adapter for brain surgery | John Koivukangas | 1989-05-30 |