Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6907995 | Chip screening method and plant | — | 2005-06-21 |
| 5975169 | Feeding method and feeding chute of disc chipper | Arvo Jonkka, Antti Tohkala | 1999-11-02 |
| 5765452 | Method for improving the endurance of a blade base of a disc chipper, a blade base of a disc chipper and a disc chipper | Paul Roux, Timothy P. Nettles, Arvo Jonkka, Pauli Vienola, Antti Tohkala | 1998-06-16 |
| 5373876 | Chipping control device and disc chipper | Aaro Klaavu, Alpo Kalliokoski | 1994-12-20 |