Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11141679 | Ultrasound crystallization device and an ultrasound crystallization system | Tuomas Koiranen, Antti HÄKKINEN, Juha Varis, Marjatta Louhi-Kultanen | 2021-10-12 |
| 10814282 | Filter element for a filter apparatus | Kari VÄNTTINEN, Ismo JUVONEN, Rolf Hindstrom, Mika ILLI, Edward Vroman +2 more | 2020-10-27 |
| 10653982 | Vacuum box, belt filter, methods for servicing a vacuum belt filter, method for liquid-solid separation of a slurry, and filter element | Kari VÄNTTINEN, Mika ILLI | 2020-05-19 |
| 10625178 | Removal of organic solvents from aqueous process streams | Markku Kuosa, Antti HÄKKINEN, Leena Tanttu, Timo Jauhiainen | 2020-04-21 |
| 6596168 | Filter element and method for the manufacture | Kerry Johnson, Olli Högnabba | 2003-07-22 |
| 6351895 | Method for making drying more effective | Göran Norrgård, Juan A. Gallego Juarez, Germán Rodriguez Corral, Luis Elvira Segura | 2002-03-05 |
| 6079120 | Method for making drying more effective | Göran Norrgård, Juan A. Gallego Juarez, Germán Rodriguez Corral, Luis Elvira Segura | 2000-06-27 |
| 5900147 | Oscillatable filter medium | — | 1999-05-04 |
| 5653816 | Method for cleaning the filter medium in a suction dryer by focusing ultrasonic beams | — | 1997-08-05 |
| 5615494 | Apparatus for treating a filter cake | — | 1997-04-01 |
| 5178777 | Method for removing a filter cake | Jan O. M. Hognabba, Marti A. Sointusalo | 1993-01-12 |
| 4946602 | Method of cleaning filter discs in a suction dryer using ultrasonic vibration | Göran Norrgård | 1990-08-07 |
| 4584058 | Method and apparatus for dewatering a fibrous web | Antti Lehtinen, Vaino Sailas, Markku Lampinen | 1986-04-22 |