Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11208296 | Method for constructing an elevator system having increasing usable lifting height | Lukas Christen, Stefan Weber, Gabriele Bizzozero | 2021-12-28 |
| 11034550 | Method for constructing an elevator system having an adaptable usable lifting height | Lukas Christen | 2021-06-15 |