Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8387997 | Steering arrangement for vehicles | Thomas Gross | 2013-03-05 |
| 6315365 | Mining machine with core breakers | Roman Gerer, Kurt-Michael Schaffer | 2001-11-13 |
| 5193295 | Installation for shifting won minerals | Helmut Gradenegger, Egmont Lammer | 1993-03-16 |
| 4688855 | Drift advancing or exploiting machine | Franz Barnthaler, Alfred Zitz | 1987-08-25 |
| 4594047 | Conveying means for removing a heap of debris | Helmut Gradenegger | 1986-06-10 |