Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12297297 | Process for producing microcrystalline cellulose | Hannu RÅMARK, Kari Vanhatalo, Taina LINTUNEN | 2025-05-13 |
| 12173451 | Arrangement and method for degassing a pump | Ronny GEIGER | 2024-12-24 |
| 11325160 | Separation device | Janne Vehmaa, Vesa Kaipainen, Sami Siik, Sampsa Porkka | 2022-05-10 |
| 10240287 | Heating of hydraulic digesters | Auvo Kettunen, Pasi Heinämäki, Hannu RÅMARK | 2019-03-26 |
| 8721840 | Apparatus for mixing a substance into a medium | Arto Laukkanen, Timo Perttula, Janne Vehmaa | 2014-05-13 |
| 8048270 | Apparatus for distributing a pulp flow | Janne Vehmaa | 2011-11-01 |
| 6551054 | Method and apparatus for pumping a material and a rotor for use in connection therewith | Reijo Vesala, Vesa Vikman | 2003-04-22 |
| 6491787 | Method for heating pulps | Reijo Vesala, Vesa Vikman | 2002-12-10 |
| 6354514 | Method and apparatus for treating material having poor thermal conductivity | Kaj Henricson | 2002-03-12 |
| 6071331 | Method and apparatus for separating gas from a gaseous material | Toivo Niskanen | 2000-06-06 |
| 5791778 | Method and apparatus for mixing gaseous chemical to fiber suspension | Matti Manninen, Reijo Vesala | 1998-08-11 |
| 5536368 | Method and apparatus for mixing a first medium to a second medium and a bleaching process applying said method | Mika P. Makela, Toivo Niskanen | 1996-07-16 |
| 5462585 | Method and apparatus for separating gas from a gaseous material | Toivo Niskanen | 1995-10-31 |
| 5258100 | Minimizing gas separation in a mixer outlet | Toivo Niskanen, Brian F. Greenwood, Stephen J. Dunn, Mika P. Makela | 1993-11-02 |
| 5240621 | Method and apparatus for improving flotation separation | Jorma Elonen, Harry Erlund, Kaj Henricson, Pasi Immonen, Raimo Kohonen +3 more | 1993-08-31 |