Issued Patents All Time
Showing 1–25 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8691049 | Method for an energy efficient production of cellulose pulp in a continuous digester | — | 2014-04-08 |
| 8545674 | Method to use heat energy from black liquor | — | 2013-10-01 |
| 8273212 | Method for kraft pulp production where hemicelluloses are returned | — | 2012-09-25 |
| 8197639 | Vapour phase digester and a method for continuous cooking | — | 2012-06-12 |
| 8168041 | Device for diluting shredded cellulosic particles/chips | Lennart Gustavsson, Jonas Saetherasen, Goran Olsson | 2012-05-01 |
| 8052843 | System and a method for the steam pre-treatment of chips in association with the production of chemical cellulose pulp | Linda Almqvist, Daniel Trolin, Lennart Gustavsson | 2011-11-08 |
| 7998310 | Method for impregnating chips | Lennart Gustavsson, Jonas Saetherasen | 2011-08-16 |
| 7901541 | Method and arrangement for impregnating chips | Lennart Gustavsson, Daniel Trolin, Mats Nasman | 2011-03-08 |
| 7887671 | Method for dilution of cellulose pulp | Lennart Gustavsson, Jonas Saetherasen, Goran Olsson | 2011-02-15 |
| 7871491 | Method and arrangement for continuous cooking | Mikael Lindstrom | 2011-01-18 |
| 7837834 | Method and device for the continuous cooking of pulp | Mikael Lindstrom | 2010-11-23 |
| 7713383 | Arrangement for feeding a slurry of chips and liquid | Jonas Saetherasen, Bo Wilke, Lennart Gustavsson | 2010-05-11 |
| 7686919 | Method and device for the continuous cooking of pulp | Mikael Lindstrom | 2010-03-30 |
| 7615134 | Method and arrangement of impregnating chips | Lennart Gustavsson | 2009-11-10 |
| 7566380 | Continuous digester with fluid circulation | Anders Samuelsson | 2009-07-28 |
| 7547374 | Method for impregnating chips in a continuous digestion system | — | 2009-06-16 |
| 7540937 | Method for continuous cooking | Lennart Gustavsson, Jonas Saetherasen | 2009-06-02 |
| 7501043 | Steam treatment of chips with the addition of an acid liquid | Krister Olsson | 2009-03-10 |
| 7497927 | Continuous digester with fluid circulation | Anders Samuelsson | 2009-03-03 |
| 7459058 | Feed of a mixture of chips and fluid from a low-pressure system to a high-pressure system | — | 2008-12-02 |
| 7445691 | Impregnation of chips with an acid liquid prior to a sulphate pulping process | Krister Olsson | 2008-11-04 |
| 7422657 | Method for the feed of cellulose chips during the continuous cooking of cellulose | Lennart Gustavsson | 2008-09-09 |
| 7381302 | Method and arrangement for impregnating chips | Lennart Gustavsson | 2008-06-03 |
| 7374637 | Method of bleaching cellulose pulp with a main conduit for wash liquor and filtrate | Lennart Gustavsson | 2008-05-20 |
| 7351306 | Cooking of cellulose pulp in a cooking liquor containing pre-evaporated black liquor | Mikael Lindstrom | 2008-04-01 |