Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4534397 | Method for producing chemimechanical high yield pulp using an oxygen alkali treatment followed by an oxygen mechanical defibration | Hans Norrstrom | 1985-08-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4534397 | Method for producing chemimechanical high yield pulp using an oxygen alkali treatment followed by an oxygen mechanical defibration | Hans Norrstrom | 1985-08-13 |