Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6346167 | Dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Jan T. Richardsen +1 more | 2002-02-12 |
| 6306252 | Heat recovery from spent digester cooking liquor | — | 2001-10-23 |
| 6280568 | Dissolved organic material control in a cellulose pulp continuous digester | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Jan T. Richardsen +1 more | 2001-08-28 |
| 6261412 | Regenerative heat recovery for high temperature condensate stripping plants | — | 2001-07-17 |
| 6217711 | Method of treating condensates | Jarmo Kaila, John Rauscher, Theodora RETSINA, Jan Ohman | 2001-04-17 |
| 6176971 | Heat economy enhancements for the recovery and use of energy obtained from spent cooking liquors | Ella Sun Yu, C. Bertil Stromberg, R. Fred Chasse | 2001-01-23 |
| 6159337 | Dissolved organic materials control in cellulose pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Jan T. Richardsen +1 more | 2000-12-12 |
| 6106668 | Method for feeding comminuted fibrous material | C. Bertil Stromberg, J. Wayne Chamblee, Bruno Marcoccia, Erwin D. Funk | 2000-08-22 |
| 6086712 | DOM control in cellulose pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Jan T. Richardsen +1 more | 2000-07-11 |
| 5849150 | Low dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Jan T. Richardsen +1 more | 1998-12-15 |
| 5753075 | Method and system for feeding comminuted fibrous material | C. Bertil Stromberg, J. Wayne Chamblee, Bruno Marcoccia, Erwin D. Funk | 1998-05-19 |
| 5683550 | Method and apparatus for increasing recovery boiler capacity by withdrawing combustible gas from the furnace | — | 1997-11-04 |
| 5620562 | Dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Jan T. Richardsen +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, Jan T. Richardsen +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, Jan T. Richardsen +1 more | 1996-02-06 |
| 5380402 | Reducing pulp mill liquid discharge | Tuomo Nykanen, Brian F. Greenwood, Johan Gullichsen, Erkki Kiiskila, Esko Mattelmaki +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 |
| 5360513 | Sulphur removal from gases associated with boilers having cascade evaporators | — | 1994-11-01 |
| 5326433 | Multi-level sulfide content white liquor production and utilization in cellulose pulping | James W. Smith, Jian E. Jiang, Kaj Henricson | 1994-07-05 |
| 5302246 | Method of managing liquid steams in a pulp mill | Tuomo Nykanen, Jan T. Richardsen | 1994-04-12 |
| 5259928 | Apparatus for evaporation of liquid solutions | — | 1993-11-09 |
| 5246541 | Evaporator for liquid solutions | — | 1993-09-21 |