Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10689728 | Renewable isoparaffins as diluent in hydrometallurgical liquid-liquid extraction process | Rami Saario, Jukka Kortelainen, Maija Rouhiainen, Virpi Rämö | 2020-06-23 |
| 10662499 | Treatment of degraded oxime metal extractants in process organic solutions | James Kabugo | 2020-05-26 |
| 10221493 | Method for recovery of copper and zinc | Kari Hietala, Mika Haapalainen | 2019-03-05 |
| 10060007 | Method of preparing a gold-containing solution and process arrangement for recovering gold and silver | Ville Miettinen, Riina Ahtiainen, Kari Valkama, Kari Hietala, Mika Haapalainen | 2018-08-28 |
| 8974673 | Method of regeneration an organic extraction solution that has been used in a liquid-liquid extraction process | Kai Jyrkkä, Sami Virolainen | 2015-03-10 |
| 8961795 | Apparatus and method for removing impurities in connection with liquid-liquid extraction of copper | Hannu Laitala, Bror Nyman, Eero Ekman | 2015-02-24 |
| 8926924 | Extraction process | Bror Nyman, Stig-Erik Hultholm, Eero Ekman | 2015-01-06 |
| 8926730 | Method for recovering gold by solvent extraction | Mika Haapalainen | 2015-01-06 |
| 6924371 | Use of a weakly acid cation exchange resin for chromatographic separation of carbohydrates | Ari Kärki, Heikki Heikkila, Juho Jumppanen, Jari Tiihonen, Tiina Tervala +3 more | 2005-08-02 |
| 6664340 | Sulphonated polymer resin and preparation thereof | Ari Kärki, Heikki Heikkila, Heikki Mononen, Hannu Paananen, Jari Tiihonen | 2003-12-16 |
| 6492551 | Method for manufacturing alkali metal or alkaline-earth metal formate | Marko Lahtinen, Kari Saari, Pekka Vapaaoksa | 2002-12-10 |
| 6255541 | Process for the preparation of polyvalent alcohols | Esa Nummi, Lars-Peter Lindfors, Hannu Nousiainen, Jukka Hietala, Leila Lahtinen +1 more | 2001-07-03 |
| 6147235 | Process for hydrogenating unsaturated plant-based compounds and regeneration of a used catalyst | Jarkko Helminen, Ulf Hotanen, Matti Hautala, Ari Kärki | 2000-11-14 |