Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10924840 | Earphones with removable connection cable | — | 2021-02-16 |
| 10141494 | Headset and headphone | Martin Streitenberger, André Grandt, Elmar Schulze, Hatem Foudhaili | 2018-11-27 |
| 9277039 | Headset and headphone | Axel Schmidt, Olaf Leske, Olav Nisse, Christian Grone, Hatem Foudhaili +2 more | 2016-03-01 |
| 8755554 | Earphone and headset | Kornelia Kaddig | 2014-06-17 |
| 8638969 | Earphone, headset and ear pad | Olav Nisse, Olaf Leske, Steffi Beier | 2014-01-28 |
| 8559665 | Headset and headphone | Axel Schmidt, Olaf Leske, Olav Nisse, Christian Grone, Hatem Foudhaili +2 more | 2013-10-15 |
| 8369557 | Earphone and headset | Olav Nisse, Olaf Leske | 2013-02-05 |
| 8215445 | Electroacoustic transducer | Jens Wildhagen, Axel Grell | 2012-07-10 |
| 8194909 | Earphone, headset and ear protector | Olav Nisse | 2012-06-05 |
| 8184788 | Communication system | — | 2012-05-22 |
| 8111857 | In-ear headset and in-ear earphone | Stefan Marten | 2012-02-07 |
| 7653207 | Bistable spreading head harness | Wolf-Dietrich Bebenroth | 2010-01-26 |