Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6915711 | Method and means for measuring stress forces in refiners | Hans-Olof Backlund | 2005-07-12 |
| 4906269 | Method of and apparatus for manufacturing a glass object | Pekka Leppanen | 1990-03-06 |
| 4435193 | Controlling operation of a centrifugal pump | Johan Gullichsen, Toivo Niskanen, Jaakko Kujala, Voitto Reponen | 1984-03-06 |
| 4410337 | Method and an apparatus for separating a gas from a fibre suspension | Johan Gullichsen, Jaakko Kujala, Toivo Niskanen, Voitto Reponen | 1983-10-18 |