Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312211 | Power management in an elevator system | Virgilio Valdivia Guerrero, Ismail Agirman, Daniel Diaz-Lopez, Mario Sanz Abia, Stephan Glessner | 2025-05-27 |
| 11613444 | Decentralized power management in an elevator system | Virgilio Valdivia Guerrero, Ismail Agirman, Daniel Diaz-Lopez, Mario Sanz Abia, Stephan Glessner | 2023-03-28 |
| 10071880 | Low profile drive unit for elevator system | Andreas Tutat, Ibrahim Ia Atalmis, Marvin Dehmlow | 2018-09-11 |
| 9914617 | Elevator power management to augment maximum power line power | Michael Mann, Dirk H. Tegtmeier | 2018-03-13 |
| 7523809 | Elevator top of car safety | Andres Monzon-Simon, Julián Cabañas Falcón, Fernando Del Rio Sanz, Antonio de Miguel Urquijo, Francisco Luis Sanz Delgado +2 more | 2009-04-28 |
| 6782989 | Process for switching between mains supply and a frequency inverter and vice versa | Stefan Spannhake, Reinhard Henkel | 2004-08-31 |
| 6591947 | Use of multi-state sensors | Peter Herkel, Stefan Spannhake | 2003-07-15 |
| 6161656 | Speed and direction indicator for elevator systems | Michael Mann, Helmut Schroder-Brumloop | 2000-12-19 |