Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374333 | Method for minimizing pulp mill effluents | Tuomo Nykanen, Brian F. Greenwood, Johan Gullichsen, Erkki Kiiskila, Joseph R. Phillips +4 more | 1994-12-20 |
| 5366716 | Method for recovering sulphur dioxide from the chemical circulation of a sulphate pulp mill | — | 1994-11-22 |