Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7621376 | Elevator installation and method for operating a vertical elevator shafts arranged adjacent to one another | Philipp Angst | 2009-11-24 |
| 7537089 | Elevator installation with individually movable elevator cars and method for operating such an elevator installation | Philipp Angst | 2009-05-26 |