Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11535487 | Elevator safety system | — | 2022-12-27 |
| 11485608 | Elevator safety system | Dirk H. Tegtmeier | 2022-11-01 |
| 11440773 | Automatic rescue operation in an elevator system | — | 2022-09-13 |
| 11414297 | Elevator safety device | Mustapha Toutaoui, Ralph S. Stripling, Sven Knuth, Raphael Pecek | 2022-08-16 |