Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9080286 | Method in the treatment of odorous gases of a chemical pulp mill | Kari Saviharju | 2015-07-14 |
| 7207280 | Combustion air system for recovery boilers, burning spent liquors from pulping processes | Kari Saviharju, Jorma Simonen, Liisa Simonen, Esa Vakkilainen | 2007-04-24 |
| 6742463 | Combustion air system for recovery boilers, burning spent liquors from pulping processes | Kari Saviharju, Jorma Simonen, Liisa Simonen, Esa Vakkilainen | 2004-06-01 |
| 5549788 | Minimal effluents discharge pulp mill with chemical recovery | Tuomo Nykanen, Brian F. Greenwood, Johan Gullichsen, Erkki Kiiskila, Joseph R. Phillips +4 more | 1996-08-27 |
| 5547543 | Apparatus for minimizing effluent discharges and recovering chemicals in a pulp mill | Tuomo Nykanen, Brian F. Greenwood, Johan Gullichsen, Erkki Kiiskila, Joseph R. Phillips +4 more | 1996-08-20 |
| 5518583 | Zero discharge mill distillation, salt recovery, and water management | Tuomo Nykanen, Brian F. Greenwood, Johan Gullichsen, Erkki Kiiskila, Joseph R. Phillips +4 more | 1996-05-21 |
| 5455328 | Method for acidification of soap with sodium bisulphite solution | Olavi Vuorikari, Teemu Tanner, Jukka Koistinen, Kari Sarkkinen | 1995-10-03 |
| 5380402 | Reducing pulp mill liquid discharge | Rolf Ryham, Tuomo Nykanen, Brian F. Greenwood, Johan Gullichsen, Erkki Kiiskila +4 more | 1995-01-10 |
| 5374333 | Method for minimizing pulp mill effluents | Tuomo Nykanen, Brian F. Greenwood, Johan Gullichsen, Erkki Kiiskila, Joseph R. Phillips +4 more | 1994-12-20 |
| 5366716 | Method for recovering sulphur dioxide from the chemical circulation of a sulphate pulp mill | — | 1994-11-22 |
| 5149448 | Method and apparatus for thickening lime sludge | — | 1992-09-22 |
| 5110289 | Apparatus for heat treatment of lime mud | — | 1992-05-05 |
| 5110567 | Method and apparatus for heat treatment of lime mud | — | 1992-05-05 |