Dolleman; Hendrik
Patent Applications and Registrations
Patent applications and USPTO patent grants for Dolleman; Hendrik.The latest application filed is for "microphone for a hearing aid".
- Dolleman; Hendrik - Assendelft N/A NL
| Patent | Date |
|---|---|
| Microphone for a hearing aid Grant 8,369,552 - Engbert , et al. February 5, 2 | 2013-02-05 |
| Electroacoustic transducer with a diaphragm and method for fixing a diaphragm in such transducer Grant 7,706,561 - Wilmink , et al. April 27, 2 | 2010-04-27 |
| Method for fixing a diaphragm in an electroacoustic transducer Grant 7,492,919 - Engbert , et al. February 17, 2 | 2009-02-17 |
| Microphone for a hearing aid App 20070258610 - Engbert; Wilmink ; et al. | 2007-11-08 |
| Microphone for a hearing aid Grant 7,292,700 - Engbert , et al. November 6, 2 | 2007-11-06 |
| Cylindrical microphone having an electret assembly in the end cover Grant 7,286,680 - Steeman , et al. October 23, 2 | 2007-10-23 |
| Method for fixing a diaphragm in an electroacoustic transducer App 20060230598 - Engbert; Wilmink ; et al. | 2006-10-19 |
| Cylindrical microphone having an electret assembly in the end cover App 20060215867 - Steeman; Michael G.M. ; et al. | 2006-09-28 |
| Electroacoustic transducer with a diaphragm, and method for fixing a diaphragm in such transducer Grant 7,110,565 - Engbert , et al. September 19, 2 | 2006-09-19 |
| Cylindrical microphone having an electret assembly in the end cover Grant 7,062,058 - Steeman , et al. June 13, 2 | 2006-06-13 |
| Miniature microphone Grant 7,043,035 - Rittersma , et al. May 9, 2 | 2006-05-09 |
| Electroacoustic transducer with a diaphragm and method for fixing a diaphragm in such transducer App 20050111688 - Wilmink, Engbert ; et al. | 2005-05-26 |
| Miniature microphone App 20030103639 - Rittersma, Zacharias M. ; et al. | 2003-06-05 |
| Cylindrical microphone having an electret assembly in the end cover App 20020154790 - Steeman, Michael G. M. ; et al. | 2002-10-24 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 