Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7857103 | Elevator system | — | 2010-12-28 |
| 7828120 | Method of modernizing an elevator installation | Miroslav Kostka | 2010-11-09 |
| 7779967 | Method of operating an elevator installation, an elevator installation operable by this method and safety equipment for this elevator installation | Georges Gisler | 2010-08-24 |
| 7762376 | Elevator with two elevator cars which are disposed one above the other in a shaft | — | 2010-07-27 |
| 7661513 | Dual-car elevator system with common counterweight | — | 2010-02-16 |
| 7637356 | Elevator system with safety device on elevator doors | — | 2009-12-29 |
| 7628251 | Elevator installation with a linear drive system | — | 2009-12-08 |
| 6273216 | Emergency release device | Dietrich Wegener | 2001-08-14 |
| 4522453 | Tribological coatings for the protection of moving machine parts from wear and corrosion | Johann Lammer, Hans E. Hintermann | 1985-06-11 |