Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5662774 | Adjusting the sulphur balance of a sulphate cellulose plant by heat treating black liquor in a last evaporation stage | Esa Pikkujamsa | 1997-09-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5662774 | Adjusting the sulphur balance of a sulphate cellulose plant by heat treating black liquor in a last evaporation stage | Esa Pikkujamsa | 1997-09-02 |