Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9228745 | Cleaner equipment for the smelt spouts of a recovery boiler | Hannu Koskela, Ari Saarela | 2016-01-05 |
| 7891325 | Cleaner for the smelt spout of a recovery boiler | Hannu Koskela, Ari Saarela | 2011-02-22 |
| 6287415 | Arrangement in soda recovery boiler for removing melts for maintenance | Jaakko Mäkelä, Aki Hakulinen, Tuomo Ruohola | 2001-09-11 |
| 5528999 | Air nozzle for a recovery boiler | — | 1996-06-25 |