Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8011481 | Method for monitoring operating states of an elevator unit by sensing movable brake part | Karl Erny, Rudolf Eckenstein | 2011-09-06 |
| 7909145 | Brake device for an elevator with monitoring capabilities | Karl Erny, Rudolf Eckenstein | 2011-03-22 |
| 7866446 | Method and device for reducing the energy consumption of an elevator installation | — | 2011-01-11 |