Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5950946 | Pair of co-operating refining elements intended for a disc refiner | Olof Kjellqvist | 1999-09-14 |
| 5526992 | Refining element of a disc refiner | Anders Hawen, Christer Hedlund, Pertti Purolainen, Lennart Rohden, Nils Virving | 1996-06-18 |
| D342745 | Refining plate | Lennart Rohden | 1993-12-28 |