Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7587994 | Arrangement in recovery boiler | Antti Raukola, Kari Haaga | 2009-09-15 |
| 6609482 | Method in a soda recovery boiler, and a soda recovery boiler | Tuomo Ruohola, Antti Raukola | 2003-08-26 |
| 6287415 | Arrangement in soda recovery boiler for removing melts for maintenance | Kalle Salmi, Jaakko Mäkelä, Tuomo Ruohola | 2001-09-11 |
| 6178924 | Method for upgrading a boiler | Kari Haaga | 2001-01-30 |