Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11174591 | Green liquor clarification using sedimentation tank during white liquor preparation | Zicheng ZHANG, John Johnson, Sanchuan Guo | 2021-11-16 |
| 10011947 | Method and apparatus for obtaining strong white liquor and lime mud with low residual alkali level | Eva Hogebrandt, Roger Jansson | 2018-07-03 |
| 8518273 | Method and device for cleaning of filter | Patrik Lownertz | 2013-08-27 |
| 7270726 | Method for the production of green liquor | Jan Tjernberg, Anita Markusson | 2007-09-18 |
| 6793809 | Pipe system for receiving and transporting lime sludge from a white liquor filter | Jan Tjernberg | 2004-09-21 |
| 5972228 | "Filters employing ""filling bodies"" to reduce the amount of backwashing fluid remaining in the filters after backwashing" | Hans Karlsson, Per-Gustaf LARSSON, Martin Wimby, Anita Markusson | 1999-10-26 |