Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6682632 | Roll for a paper or board machine | Heikki Karttunen, Antti Leinonen, Seppo Kiviranta, Hannu Villgrén, Miikka Kettunen +2 more | 2004-01-27 |
| 6402896 | Roll for a paper or board machine | Heikki Karttunen, Antti Leinonen, Seppo Kiviranta, Hannu Villgrén, Miikka Kettunen +1 more | 2002-06-11 |
| 6206813 | Arrangement in a variable-crown roll provided with loading shoes | — | 2001-03-27 |
| 5896813 | Gradient calender | Ari Lehto | 1999-04-27 |
| 5170547 | Method and device for balancing a roll | Jukka Koistinen | 1992-12-15 |
| 5096734 | Method and device for balancing a roll | Jukka Koistinen | 1992-03-17 |
| 4856154 | Method and device in an adjustable crown roll | Vesa Kainu | 1989-08-15 |