Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11414297 | Elevator safety device | Peter Herkel, Ralph S. Stripling, Sven Knuth, Raphael Pecek | 2022-08-16 |
| 9988239 | Preventative maintenance by detecting number of switching events of components | — | 2018-06-05 |
| 9580276 | Elevator system with messaging for automated maintenance | — | 2017-02-28 |
| 5783783 | Correction run for an elevator system | Jan Kradin | 1998-07-21 |
| 5711112 | Double-drive automatic sliding door operator | Michael Barten, Rudiger Lob, Helmut Schroder-Brumloop | 1998-01-27 |
| 5677519 | Elevator leveling adjustment | Peter Herkel, Christoph M. Ernecke, Alberto Vecchiotti | 1997-10-14 |
| 5587566 | Method for adjusting an elevator door | Michael Barten | 1996-12-24 |
| 5384439 | Adaptive digital velocity control loop for a high performance elevator door system with low cost | Christoph M. Ernecke, Michael Barten | 1995-01-24 |
| 5378861 | Automatic setting of the parameters of a profile generator for a high performance elevator door system | Michael Barten | 1995-01-03 |
| 5157228 | Adjusting technique for a digital elevator drive system | Bernd Ackermann, Peter Herkel, Herbert K. Horbruegger | 1992-10-20 |
| 5137119 | Adaptive digital armature current control method for ward-leonard elevator drives using an SCR generator field converter | Herbert K. Horbruegger | 1992-08-11 |
| 5076399 | Elevator start control technique for reduced start jerk and acceleration overshoot | Herbert K. Horbruegger, Bernd Ackermann, Peter Herkel | 1991-12-31 |