Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10526169 | Safety switching for an elevator system | Eric Birrer | 2020-01-07 |
| 10364127 | Elevator installation safety system and method of checking same | Eric Birrer | 2019-07-30 |
| 9926170 | Movement-monitoring system of an elevator installation | David Michel, Eric Birrer, Michael Geisshüsler | 2018-03-27 |
| 9546077 | Elevator door with a door contact switch | Eric Birrer | 2017-01-17 |