Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7311039 | Method and arrangement for preventing vibrations in a multi-nip calender or calender array | — | 2007-12-25 |
| 6905573 | Method and equipment for cleaning and maintaining rolls | Tapio Mäenpää, Pekka Koivukunnas, Aaron Mannio, Olli-Pekka Väkevä, Kari Hasanen +8 more | 2005-06-14 |
| 6494823 | Take-out roll, spreader roll, or equivalent for a web-like material | Pekka Koivukunnas | 2002-12-17 |
| 5848452 | Roll cleaning apparatus | Teuvo Lappalainen | 1998-12-15 |