Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8280082 | Electret assembly for a microphone having a backplate with improved charge stability | Aart Zeger van Halteren, Michel Bosman, Dion Ivo de Roo, Raymond Mögelin, Michel de Nooij | 2012-10-02 |
| 7684575 | Electret assembly for a microphone having a backplate with improved charge stability | Aart Zeger van Halteren, Michel Bosman, Dion Ivo de Roo, Raymond Mögelin, Michel de Nooij | 2010-03-23 |
| 7136496 | Electret assembly for a microphone having a backplate with improved charge stability | Aart Zeger van Halteren, Michel Bosman, Dion Ivo de Roo, Raymond Mögelin, Michel de Nooij | 2006-11-14 |