Issued Patents All Time
Showing 51–56 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6362365 | Preparation of trifluorobenzoic acids | Ralf Pfirmann | 2002-03-26 |
| 6254319 | Friction and vertical cutting tool | Wilfried Eble | 2001-07-03 |
| 5160232 | Drill bit or end mill with grooved flutes | — | 1992-11-03 |
| 4679971 | Rotary cutting tool and process for making same | — | 1987-07-14 |
| 4645389 | Multiple-tooth drill bit | — | 1987-02-24 |
| 4594034 | Multigroove drill bit with angled frontal ridges | — | 1986-06-10 |