Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8139801 | Hearing aid glasses using one omni microphone per temple | Jacob van der Zwan | 2012-03-20 |
| 7735996 | Connector assembly for connecting an earpiece of a hearing aid to glasses temple | Jacob van der Zwan | 2010-06-15 |
| 7609842 | Spectacle hearing aid | Marinus Marias Boone, Thomas Alfred Hutjes | 2009-10-27 |