Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12291430 | Electronic elevator guard device and method for monitoring a set of integrity states of a plurality of elevator features | — | 2025-05-06 |
| 10577808 | Method for modernizing a building and structure with an elevator system constructed in a building | Sönke Mestemacher | 2020-03-03 |
| 7338176 | Elevator installation with information representation on a shaft door | Paul Friedli | 2008-03-04 |
| 7319966 | Method of communicating information for elevator users | Paul Friedli, Kilian Schuster | 2008-01-15 |
| 6354405 | Elevator system | René Matthe | 2002-03-12 |