Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10991223 | Optical fire sensor device and corresponding fire detection method | Stefan Weiss, Alexander Herrmann, Christopher Haug, Susanne Weidenfeld, Jens-Alrik Adrian | 2021-04-27 |
| 10097814 | Fire monitoring system | Joerg Turner | 2018-10-09 |
| 9117359 | Photoelectric smoke detector and process for testing the photoelectric smoke detector | Gerhard Gruener, Wolfgang Werkmeister, Joerg Tuermer | 2015-08-25 |
| 8754942 | Detection device and method for detecting fires and/or signs of fire | Ralph Bergmann | 2014-06-17 |
| 7499561 | Hearing aid with cerumen protection | Torsten Niederdrank | 2009-03-03 |
| 7254245 | Circuit and method for adaptation of hearing device microphones | Georg-Erwin Arndt, Joachim Eggers, Torsten Niederdrank, Hartmut Ritter, Gunter Sauer | 2007-08-07 |
| 7016510 | Hearing aid and operating method for automatically switching to a telephone mode | Georg-Erwin Arndt, Thomas Fischer, Henning Puder | 2006-03-21 |