Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5919337 | Method of continuously isothermally cooking of pulp | Sven-Erik Olsson, Finn Jacobsen, Ake Backlund, Johanna Svanberg | 1999-07-06 |
| 5672245 | Recycling of knots in a continuous process for cooking chemical pulp | Elisabeth Andtbacka, Anders Bergqvist | 1997-09-30 |
| 5540816 | Method of integrating bleaching and recovery in the production of pulp | Anders Bergqvist, Lennart Hagelquist, Daniel Pålsson, Gunnar Carl Wernqvist | 1996-07-30 |
| 5415734 | Process for bleaching pulp without using chlorine containing chemicals | Ake Backlund, Bjorn Dillner | 1995-05-16 |