Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6346167 | Dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 2002-02-12 |
| 6280568 | Dissolved organic material control in a cellulose pulp continuous digester | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 2001-08-28 |
| 6159337 | Dissolved organic materials control in cellulose pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 2000-12-12 |
| 6086712 | DOM control in cellulose pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 2000-07-11 |
| 5849150 | Low dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 1998-12-15 |
| 5620562 | Dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 1997-04-15 |
| 5549788 | Minimal effluents discharge pulp mill with chemical recovery | Tuomo Nykanen, Brian F. Greenwood, Johan Gullichsen, Erkki Kiiskila, Esko Mattelmaki +4 more | 1996-08-27 |
| 5547012 | Dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 1996-08-20 |
| 5547543 | Apparatus for minimizing effluent discharges and recovering chemicals in a pulp mill | Tuomo Nykanen, Brian F. Greenwood, Johan Gullichsen, Erkki Kiiskila, Esko Mattelmaki +4 more | 1996-08-20 |
| 5518583 | Zero discharge mill distillation, salt recovery, and water management | Tuomo Nykanen, Brian F. Greenwood, Johan Gullichsen, Erkki Kiiskila, Esko Mattelmaki +4 more | 1996-05-21 |
| 5489363 | Pulping with low dissolved solids for improved pulp strength | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 1996-02-06 |
| 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, Esko Mattelmaki +4 more | 1994-12-20 |
| 5302246 | Method of managing liquid steams in a pulp mill | Tuomo Nykanen, Rolf Ryham | 1994-04-12 |
| 5302247 | Top circulation line cooling for a modified cook digester | Victor L. Bilodeau, Mark D. Barrett, Carl Luhrmann | 1994-04-12 |