Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4419109 | Means for degassing paper pulp stock | — | 1983-12-06 |
| 4358369 | Hydrocyclone | Pentti Vikio | 1982-11-09 |
| 4219166 | Disk defibrator | Jorma Surakka, Martti Pokkinen, Jorma Makkonen, Erkki Valkama, Viljo Karkkainen +1 more | 1980-08-26 |