Patents per Year
Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11192752 | Elevator drive control during power disruption | Roman Camenzind, Om Prakash | 2021-12-07 |
| 9061864 | Method for operating elevators to test brakes | Erich Spirgi, Daniel Bossard, Danilo Peric, Enrique Almada, Urs Ammon +2 more | 2015-06-23 |
| 7261186 | Elevator with transverse flux drive | Romeo Deplazes, Jörg Evertz | 2007-08-28 |
| 6938733 | Emergency power supply device for lift systems | — | 2005-09-06 |
| 6742630 | Super-capacitor energy storage unit for elevator installations | — | 2004-06-01 |
| 5625542 | Low-noise operation of a machine fed by a pulse inverter | Herbert Stemmler | 1997-04-29 |