Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683549 | Process for the partial combustion of cellulose spent liquor using twin fluid nozzle burner | — | 1997-11-04 |
| 5628872 | Method for bleaching pulp with hydrogen peroxide recovered from cellulosic spent liquor | Ake Backlund, Ove Wallergard | 1997-05-13 |