Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5112441 | Process for the recovery of heat and chemicals from spent liquor | Tuomo Ruohola, Kari Kuukkanen, Paavo Hyoty | 1992-05-12 |
| 5062921 | Method for regulating the feed or combustion conditions of concentrated waste liquors in a soda recovery unit | Paavo Hyoty | 1991-11-05 |
| 4891097 | Method for regulating, the feeding-in or combustion conditions of concentrated spent liquors | Paavo Hyoty, Erik Uppstu | 1990-01-02 |