Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7609842 | Spectacle hearing aid | Marcus Karel Sipkema, Thomas Alfred Hutjes | 2009-10-27 |
| 7031483 | Hearing aid comprising an array of microphones | Augustinus Johannes Berkhout, Ivo Merks | 2006-04-18 |
| 6959096 | Sound reproduction system | Diemer De Vries, Ulrich Horbach | 2005-10-25 |