Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10231060 | Electrostatic headphones | Jörg Riechers | 2019-03-12 |
| 10178465 | Headphone unit | Axel Grell | 2019-01-08 |
| 8379896 | Power supply device for a microphone | Tom-Fabian Frey | 2013-02-19 |
| 8126168 | Capacitive sound transducer having a perforated attenuation disk | — | 2012-02-28 |
| 7505151 | Arrangement for the optical distance determination of a reflecting surface | Peter Schreiber, Sergey Kudaev, André Michaelis, Wolfgang Niehoff, Vladimir Gorelik +2 more | 2009-03-17 |