Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6119798 | Rock drill bit and cutting inserts | Udo Fischer, Kauko Karki | 2000-09-19 |
| 5881828 | Rock drill bit and cutting inserts | Udo Fischer, Kauko Karki | 1999-03-16 |
| 5856626 | Cemented carbide body with increased wear resistance | Udo Fischer, Mats Waldenstrom | 1999-01-05 |
| D371374 | Asymmetrical button insert for rock drilling | Udo Fischer, Kauko Karki | 1996-07-02 |
| D371146 | Asymmetrical button insert for rock drilling | Udo Fischer, Kauko Karki | 1996-06-25 |