Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8369552 | Microphone for a hearing aid | Wilmink Engbert, Aart Zeger van Halteren, Paul Christiaan van Hal | 2013-02-05 |
| 7706561 | Electroacoustic transducer with a diaphragm and method for fixing a diaphragm in such transducer | Engbert Wilmink, Aart Zeger van Halteren, Paul Christiaan van Hal | 2010-04-27 |
| 7492919 | Method for fixing a diaphragm in an electroacoustic transducer | Wilmink Engbert, Aart Zeger van Halteren, Paul Christiaan van Hal | 2009-02-17 |
| 7292700 | Microphone for a hearing aid | Wilmink Engbert, Aart Zeger van Halteren, Paul Christiaan van Hal | 2007-11-06 |
| 7286680 | Cylindrical microphone having an electret assembly in the end cover | Michael G. M. Steeman, Paul Christiaan van Hal, Adrianus Maria Lafort, Jan Hijman, Dion Ivo de Roo +2 more | 2007-10-23 |
| 7110565 | Electroacoustic transducer with a diaphragm, and method for fixing a diaphragm in such transducer | Wilmink Engbert, Aart Zeger van Halteren, Paul Christiaan van Hal | 2006-09-19 |
| 7062058 | Cylindrical microphone having an electret assembly in the end cover | Michael G. M. Steeman, Paul Christiaan van Hal, Adrianus Maria Lafort, Jan Hijman, Dion Ivo de Roo +2 more | 2006-06-13 |
| 7043035 | Miniature microphone | Zacharias M. Rittersma, Alwin Fransen | 2006-05-09 |
| 6075870 | Electroacoustic transducer with improved shock resistance | Onno Geschiere, Huib Groot Obbink, Aart Zeger van Halteren | 2000-06-13 |