Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8435442 | System for decreasing amount of organic solution in the liquid-liquid extraction process | Hannu Laitala, Pertti Pekkala | 2013-05-07 |
| 6432370 | Method and apparatus for controllably conducting a solution, obtained from liquid-liquid extraction of two solutions and mixed into dispersion, to a wide settler | Bror Nyman, Launo L. Lilja, Stig-Erik Hultholm, Juhani Lyyra, Raimo Kuusisto +1 more | 2002-08-13 |
| 6267900 | Method and apparatus for adjusting the boundary surface between two controllably flowing and mutually separable and for conducting both solutions out of the separation part | Bror Nyman, Launo L. Lilja, Stig-Erik Hultholm, Juhani Lyyra, Raimo Kuusisto +1 more | 2001-07-31 |
| 6176608 | Method and apparatus for conducting the two solutions of liquid-liquid extraction, mixed into dispersion, in a controlled fashion into the separation part | Bror Nyman, Launo L. Lilja, Stig-Erik Hultholm, Juhani Lyyra, Raimo Kuusisto +1 more | 2001-01-23 |
| 6132615 | Method and apparatus for creating controlled flows in two mutually separable solutions | Bror Nyman, Launo L. Lilja, Stig-Erik Hultholm, Juhani Lyyra, Raimo Kuusisto +1 more | 2000-10-17 |
| 6083400 | Method and apparatus for recirculating a heavier solution from the separation part of two separable solutions into a mixing unit | Bror Nyman, Launo L. Lilja, Stig-Erik Hultholm, Juhani Lyyra, Raimo Kuusisto +1 more | 2000-07-04 |
| 5662871 | Method for extracting metals from large solution flows and apparatus for realizing the same | Bror Nyman, Valto J. Makitalo, Launo L. Lilja, Sti-Erik Hultholm | 1997-09-02 |