Marten; Stefan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Marten; Stefan.The latest application filed is for "method for producing an acoustical damping unit for an electro-acoustical transducer, acoustical damping unit and electro-acoustical transducer".
- Marten; Stefan - Wedemark DE
- Marten; Stefan - Gailhof DE
| Patent | Date |
|---|---|
| Method for producing an acoustical damping unit for an electro-acoustical transducer, acoustical damping unit and electro-acoustical transducer App 20170257719 - Marten; Stefan | 2017-09-07 |
| Handset or headset Grant 9,467,770 - Grone , et al. October 11, 2 | 2016-10-11 |
| Headset Grant 9,002,025 - Marten April 7, 2 | 2015-04-07 |
| Handset or Headset App 20150078570 - Grone; Christian ; et al. | 2015-03-19 |
| In-ear headset and in-ear earphone Grant 8,111,857 - Kuhtz , et al. February 7, 2 | 2012-02-07 |
| Wireless Communications System In An Airplane App 20100210217 - Marten; Stefan ; et al. | 2010-08-19 |
| Headset App 20100158264 - Marten; Stefan | 2010-06-24 |
| Headset And Earphone App 20100048135 - Marten; Stefan | 2010-02-25 |
| Headphone and headset App 20080310665 - Kuhtz; Jan Peter ; et al. | 2008-12-18 |
| In-Ear Headset and In-Ear Earphone App 20080226113 - Kuhtz; Jan Peter ; et al. | 2008-09-18 |
| Device For Sound Conversion App 20030103641 - MARTEN, STEFAN | 2003-06-05 |
| Electrodynamic acoustic transducer with magnetic gap sealing Grant 6,208,743 - Marten , et al. March 27, 2 | 2001-03-27 |
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