Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4435193 | Controlling operation of a centrifugal pump | Johan Gullichsen, Esko Härkönen, Toivo Niskanen, Voitto Reponen | 1984-03-06 |
| 4410337 | Method and an apparatus for separating a gas from a fibre suspension | Johan Gullichsen, Toivo Niskanen, Voitto Reponen, Esko Härkönen | 1983-10-18 |