Issued Patents 1994
Showing 1–4 of 4 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 |
| 5360513 | Sulphur removal from gases associated with boilers having cascade evaporators | — | 1994-11-01 |
| 5326433 | Multi-level sulfide content white liquor production and utilization in cellulose pulping | James W. Smith, Jian E. Jiang, Kaj Henricson | 1994-07-05 |
| 5302246 | Method of managing liquid steams in a pulp mill | Tuomo Nykanen, Jan T. Richardsen | 1994-04-12 |