Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9681221 | Delegate unit and conference system with the delegate unit | Chen Tchang, Kees Nuijten, Hatem Elayeb, Martien Kas | 2017-06-13 |
| 8885855 | High directivity boundary microphone | — | 2014-11-11 |
| 8081775 | Loudspeaker apparatus for radiating acoustic waves in a hemisphere around the centre axis | — | 2011-12-20 |