Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7620817 | System for security checking or transport of persons by an elevator installation and a method for operating this system | Paul Friedli | 2009-11-17 |
| 7207550 | Elevator, procedure for the maintenance of the elevator, procedure for the modernization of an elevator and clamping device for an elevator | Peter Spiess, Gert Silberhorn, Peter Hitz, Dieter Mehr, Johannes Kocher | 2007-04-24 |