Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4921613 | Method for purifying resin-containing waste liquor in the manufacture of cellulose pulps | Cecilia M. Nordberg, Thomas Engstrom, Owe Sanneskog, Jan hlund | 1990-05-01 |