Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6032749 | Drilling tool | Hans-Werner Bongers-Ambrosius, Rainer Batliner, Harald Geiger, Anton Knoller | 2000-03-07 |
| 5286153 | Corrosion-resistant nail for driving into hard materials | Friedrich Groeschel | 1994-02-15 |
| 5186724 | Shaped bodies for drilling or cutting hard materials | — | 1993-02-16 |