Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10825312 | Modular multi-sensor fire- and/or spark detector | Bernd Ziems, Hauke Dittmer, Dirk Siemer, Axel Grothoff, Peter Zuelzer +2 more | 2020-11-03 |
| 10761013 | Method and device for cleaning an optical entrance window of a fire alarm | — | 2020-09-01 |
| 10726707 | Hazard detector and method for transmitting a hazard signal and system comprising the hazard detector | Bernd Ziems, Hauke Dittmer, Dirk Siemer, Axel Grothoff, Peter Zuelzer +2 more | 2020-07-28 |