Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374333 | Method for minimizing pulp mill effluents | Tuomo Nykanen, Brian F. Greenwood, Johan Gullichsen, Erkki Kiiskila, Esko Mattelmaki +4 more | 1994-12-20 |
| 5302246 | Method of managing liquid steams in a pulp mill | Tuomo Nykanen, Rolf Ryham | 1994-04-12 |
| 5302247 | Top circulation line cooling for a modified cook digester | Victor L. Bilodeau, Mark D. Barrett, Carl Luhrmann | 1994-04-12 |