Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5989387 | Method for controlling chloride concentration in the flue gas of a recovery boiler | Risto Hämäläinen, Maiju Alaniemi, Keijo Imelainen, Pauli Harila, Veli-Antti Kivilinna +1 more | 1999-11-23 |
| 5112441 | Process for the recovery of heat and chemicals from spent liquor | Tuomo Ruohola, Erik Saiha, Kari Kuukkanen | 1992-05-12 |
| 5070822 | Combustion unit | Jouni Kinni, Seppo Ruottu, Pentti Janka | 1991-12-10 |
| 5062921 | Method for regulating the feed or combustion conditions of concentrated waste liquors in a soda recovery unit | Erik Saiha | 1991-11-05 |
| 4891097 | Method for regulating, the feeding-in or combustion conditions of concentrated spent liquors | Erik Uppstu, Erik Saiha | 1990-01-02 |