Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6767432 | Apparatus for the thickening of fiber suspensions | Antero Laine, Risto Ljokkoi, Sami Siik, Harri Qvintus | 2004-07-27 |
| 6736934 | Method of pretreating pulp in an acid tower prior to bleaching with peroxide | Kaj Henricson | 2004-05-18 |
| 6733625 | Method and apparatus for treating pulp | Kaj Henricson, Eero Kontturi, Janne Vehmaa | 2004-05-11 |