Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475338 | Method of minimizing transition metal ions during chemical pulping in a digester by adding chelating agent to the digester | Jian E. Jiang | 2002-11-05 |
| 6375797 | Bleaching chemical pulp in a PkDQ-Po Sequence | Olavi Pikka | 2002-04-23 |
| 6358363 | Method and apparatus for bleaching pulp using two fluidizing mixers | — | 2002-03-19 |
| 6354514 | Method and apparatus for treating material having poor thermal conductivity | Kari Peltonen | 2002-03-12 |
| 6350348 | Batch cooking with black liquor pretreatment | Auvo Kettunen, Hannu RÅMARK | 2002-02-26 |