Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6032763 | Equipment for immobilizing an elevator car | Utz Richter, Christoph Liebetrau | 2000-03-07 |
| 6012553 | Mount for a lift cage safety device | Christoph Liebetrau, Ortwin Piper | 2000-01-11 |
| 6006867 | Elevator guide apparatus | Utz Richter, Christoph Liebetrau, Jurgen Mahncke | 1999-12-28 |
| 5636712 | Apparatus for driving a self-propelled elevator | Wolfgang Muller, Christoph Liebetrau, Utz Richter, Jurgen Kastle, Helmut Heizmann | 1997-06-10 |
| 4700796 | Rear axle for a motor vehicle, especially for a four-wheel drive motor vehicle | Hans Weigele | 1987-10-20 |
| 4284291 | Vehicle, particularly motor driven utility vehicle | Fritz Hacker, Peter Kolling | 1981-08-18 |