Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9901853 | Method and apparatus for washing pulp by means of intensified suction | Pasi Harkonen, Simo Karjalainen, Tuomo Lintunen | 2018-02-27 |
| RE36297 | Method and apparatus for treating a fiber suspension | Jukka Heino, Raimo Kohonen | 1999-09-14 |
| 5264138 | Method and apparatus for treating a fiber suspension | Jukka Heino, Raimo Kohonen | 1993-11-23 |
| 5139671 | Apparatus for treating pulp | Kaj Henricson, Seppo K. Kokkonen, Olavi Pikka, Harri Qvintus, Erkki A. Ruuskanen | 1992-08-18 |
| 4995991 | Method and apparatus for improving the operation of a disc filter | Risto Ljokkoi, Tapani Niiranen, Pekka Purho, Jari Siitonen | 1991-02-26 |
| 4952314 | Apparatus for treating pulp | Kaj Henricson, Seppo K. Kokkonen, Olavi Pikka, Harri Qvintus, Erkki A. Ruuskanen | 1990-08-28 |
| 4678574 | Disc filter | Tapani Niiranen, Raimo Kohonen | 1987-07-07 |
| 4608174 | Feed and accept duct system for hydrocyclones | Seppo K. Kokkonen, Antti Kuhasalo, Juha Titoff, Jorma Vento, Pentti Vikio | 1986-08-26 |