Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6579046 | Tool head | Hartmut Hirt | 2003-06-17 |
| 5947658 | Toolhead for cutting workpieces and method of manufacturing same | — | 1999-09-07 |
| 5033918 | Device for fine adjustment of the turning tool bit of a rotating radial adjustment head | Wilfried Gerk, Gerhard Klee, Hartmut Hirt | 1991-07-23 |
| 4224846 | Turning boring head with a tool for radial adjustment | Wilfried Gerk | 1980-09-30 |