Issued Patents All Time
Showing 1–25 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9352290 | Device and method for dispersing two solutions in each other in solvent extraction | Launo L. Lilja, Stig-Erik Hultholm, Eero Ekman | 2016-05-31 |
| 9138698 | Impeller for mixing slurry in metallurgical processes | Launo L. Lilja, Jari Tiihonen, Tuomas Hirsi, Jussi Vaarno, Jouko Peräaho | 2015-09-22 |
| 9085020 | Method and apparatus for homogenizing and stabilizing an iron-bearing residue | Leena Lehtinen, Marko Lahtinen, Timo Haakana, Jari Tiihonen | 2015-07-21 |
| 9010548 | Method and arrangement for separating two solutions mixed in dispersion into two solution phases in a liquid-liquid extraction separation cell | Eero Ekman, Pertti Pekkala, Hannu Laitala, Rami Saario | 2015-04-21 |
| 8961795 | Apparatus and method for removing impurities in connection with liquid-liquid extraction of copper | Hannu Laitala, Erkki Paatero, Eero Ekman | 2015-02-24 |
| 8926924 | Extraction process | Erkki Paatero, Stig-Erik Hultholm, Eero Ekman | 2015-01-06 |
| 8858799 | Method and arrangement for separating two solutions mixed in dispersion into two solution phases in a liquid-liquid extraction separation cell | Eero Ekman, Pertti Pekkala, Hannu Laitala, Rami Saario | 2014-10-14 |
| 8133442 | Method to enhance clarification in a mixing reactor and said mixing reactor | Launo L. Lilja | 2012-03-13 |
| 8020710 | Method and equipment for liquid-liquid extraction | Eero Ekman, Stig-Erik Hultholm, Pertti Pekkala, Juhani Lyyra, Launo L. Lilja +1 more | 2011-09-20 |
| 7731853 | Method and equipment for purifying an extraction solution from aqueous entrainment and impurities | Eero Ekman, Juhani Lyyra, Pertti Pekkala, Raimo Kuusisto, Jussi Vaarno | 2010-06-08 |
| 7704398 | Method and apparatus for purification of an aqueous solution from droplets of extraction solution | Pertti Pekkala, Raimo Kuusisto, Juhani Lyyra, Eero Ekman | 2010-04-27 |
| 7695625 | Method and apparatus for purification of slightly water-soluble organic solution from aqueous entrainment | Juhani Lyyra, Pertti Pekkala, Raimo Kuusisto, Eero Ekman | 2010-04-13 |
| 7678275 | Method and equipment for liquid-liquid extraction | Eero Ekman, Stig-Erik Hultholm, Pertti Pekkala, Juhani Lyyra, Launo L. Lilja +1 more | 2010-03-16 |
| 7517461 | Method and equipment to control separation of a dispersion liquid-liquid extraction | Stig-Erik Hultholm, Eero Ekman, Launo L. Lilja, Juhani Lyyra, Pertti Pekkala +1 more | 2009-04-14 |
| 7465402 | Method and equipment for guiding dispersion in liquid-liquid extraction | Stig-Erik Hultholm, Eero Ekman, Launo L. Lilja, Juhani Lyyra, Pertti Pekkala +1 more | 2008-12-16 |
| 7390468 | Extraction process | Pertti Pekkala, Juhani Lyyra, Raimo Kuusisto, Stig-Erik Hultholm, Eero Ekman | 2008-06-24 |
| 7390420 | Method and equipment for compressing a dispersion in liquid-liquid extraction | Stig-Erik Hultholm, Eero Ekman, Launo L. Lilja, Juhani Lyyra, Pertti Pekkala +1 more | 2008-06-24 |
| 7247282 | Method for the removal of metals from an aqueous solution using lime precipitation | Stig-Erik Hultholm, Juhani Salmi, Jarmo Sivonen | 2007-07-24 |
| 7083050 | Method and apparatus for clarifying a slurry | Matti Nuorala | 2006-08-01 |
| 7070174 | Mixing apparatus for mixing gas in a closed reactor | Stig-Erik Hultholm, Mikko Juusela, Launo L. Lilja | 2006-07-04 |
| 6991111 | Flotation mechanism and cell | Launo L. Lilja, Heikki Oravainen | 2006-01-31 |
| 6855262 | Method and apparatus for clarifying and/or thickening a slurry | Matti Nuorala | 2005-02-15 |
| 6805734 | Compact cascade scrubber for scrubbing exhaust gas | Launo L. Lilja, Pasi J. Maatta, Pekka Niemelä, Timo Nivala | 2004-10-19 |
| 6799683 | Flotation mechanism and method for dispersing gas and controlling flow in a flotation cell | Seppo S. Jounela, Launo L. Lilja | 2004-10-05 |
| 6706186 | Method for extracting copper from an aqueous solution | Stig-Erik Hultholm, Launo L. Lilja, Esa Lindell, Eero Ekman, Juhani Lyyra +2 more | 2004-03-16 |