Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10155640 | Elevator system using rescue storage device for increased power | Felix Benjamin Donath, Peter Herkel, Daryl J. Marvin | 2018-12-18 |
| 9938115 | System and method for limiting over-voltage in power supply system | Peter Herkel | 2018-04-10 |
| 9376289 | Elevator control system with sleep monitor | Peter Herkel, Axel Pfeffer, Dirk H. Tegtmeier, Gianfranco Giannini, Michael Mann | 2016-06-28 |
| 9158289 | Safety circuit | Peter Herkel, Dirk H. Tegtmeier | 2015-10-13 |
| 9150385 | System for providing DC power to elevator car | Stefan Lothar Seelmann | 2015-10-06 |
| 9051155 | Elevator rescue system including communications over a rescue operation signal transmission path | Peter Herkel, Hans-Kilian Spielbauer, Matthias Hoinkis | 2015-06-09 |
| 8585158 | Safe control of a brake using low power control devices | Marvin Dehmlow | 2013-11-19 |