Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9134716 | Detection of blockages and interruptions with an aspirating smoke detector (ASD) | Martin Cole, Martin Fischer | 2015-09-15 |
| 8587442 | Smoke alarm with temporal evaluation of a backscatter signal, test method for the functional capability of a smoke alarm | Kurt Muller, Georges A. Tenchio, Walter Vollenweider | 2013-11-19 |
| 6456379 | Optical smoke detector operating in accordance with the extinction principle and method for compensating its temperature drift | Peter Kunz, Kurt Muller, Dieter Wieser | 2002-09-24 |
| 5874314 | Method for detecting organic vapors and aerosols | Dieter Wieser, Peter Ryser | 1999-02-23 |