Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7156952 | Method and arrangement for oxygen delignification of cellulose pulp | — | 2007-01-02 |
| 6946056 | Method for regulating the manufacturing of pulp by optically measuring the amount of hexenuronic acid | — | 2005-09-20 |
| 6841036 | Process for the oxygen delignification of pulp in two stages with higher pressure in the second stage | Hakan Dahllof | 2005-01-11 |
| 6808596 | System for the oxygen delignification of pulp consisting of lignocellulose-containing material | Hakan Dahllof | 2004-10-26 |
| 6391152 | Process for the oxygen delignification of pulp in two stages with higher pressure in the second stage | Hakan Dahllof | 2002-05-21 |