Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5437791 | Method for purifying process water from pulp manufacture | Birgitta Sundblad, Johan Landfors, Hans-Ake Baltsen | 1995-08-01 |
| 5354479 | Method for purifying process water or wastewater containing wood resin | Magnus Wretborn, Arne Andersson | 1994-10-11 |