| 6436232 |
Procedure for adding a filler into a pulp based on cellulose fibers |
Petri Silenius, Markku Leskelä, Esa Halinen |
2002-08-20 |
| 5813758 |
Concentric ring fluidizing mixer |
Thomas R. Delcourt, Ronald Bain, C. Bertil Stromberg |
1998-09-29 |
| 5549788 |
Minimal effluents discharge pulp mill with chemical recovery |
Tuomo Nykanen, Brian F. Greenwood, Erkki Kiiskila, Esko Mattelmaki, 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, Erkki Kiiskila, Esko Mattelmaki, Joseph R. Phillips +4 more |
1996-08-20 |
| 5518583 |
Zero discharge mill distillation, salt recovery, and water management |
Tuomo Nykanen, Brian F. Greenwood, Erkki Kiiskila, Esko Mattelmaki, Joseph R. Phillips +4 more |
1996-05-21 |
| 5380402 |
Reducing pulp mill liquid discharge |
Rolf Ryham, Tuomo Nykanen, Brian F. Greenwood, Erkki Kiiskila, Esko Mattelmaki +4 more |
1995-01-10 |
| 5374333 |
Method for minimizing pulp mill effluents |
Tuomo Nykanen, Brian F. Greenwood, Erkki Kiiskila, Esko Mattelmaki, Joseph R. Phillips +4 more |
1994-12-20 |
| 5047118 |
Method for decreasing energy consumption during refining of fiber material at a reduced grinding frequency while maintaining capacity |
— |
1991-09-10 |
| 4986480 |
Method and apparatus for feeding a conical refiner |
Bengt Nilsson, Ronny Hoglund |
1991-01-22 |
| 4854819 |
Method and apparatus for pumping fibre suspensions |
— |
1989-08-08 |
| 4842688 |
Method of removing macromolecular organic dissolved and colloidal material from wood processing industry effluents |
Pertti Hynninen |
1989-06-27 |
| 4826398 |
Medium consistency pump with self-feeding |
— |
1989-05-02 |
| 4812207 |
Method of removing lignin from bleach plant effluents |
Pertti Hynninen |
1989-03-14 |
| 4780053 |
Method and apparatus for pumping fiber suspensions |
— |
1988-10-25 |
| 4776758 |
Combined fluidizing and vacuum pump |
— |
1988-10-11 |
| 4754935 |
Method and apparatus for refining fibrous material |
— |
1988-07-05 |
| 4594152 |
Method and an apparatus for treating fibre suspensions |
— |
1986-06-10 |
| 4435193 |
Controlling operation of a centrifugal pump |
Esko Härkönen, Toivo Niskanen, Jaakko Kujala, Voitto Reponen |
1984-03-06 |
| 4410337 |
Method and an apparatus for separating a gas from a fibre suspension |
Jaakko Kujala, Toivo Niskanen, Voitto Reponen, Esko Härkönen |
1983-10-18 |
| 4362536 |
Pulp degassing |
— |
1982-12-07 |
| 4222818 |
Method for treatment of lignocellulosic material with chlorine |
Frey Sundman |
1980-09-16 |