Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4690731 | Method of making sulphate pulp | Nils J. C. Hartler, Lars Sjodin, Per J. Mjoberg | 1987-09-01 |
| 4227966 | Method for combusting a mixture of spent magnesium sulphite digestion liquor and alkaline oxygen bleach liquor | Lennart Ivnas | 1980-10-14 |