Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7562747 | Elevator installation and method for determining and analyzing an elevator car position | — | 2009-07-21 |
| 7537092 | Elevator installation and method for detecting a car position | Eric Birrer, Frank Muller | 2009-05-26 |