Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7257980 | Method and equipment for performing continuous extrusion | — | 2007-08-21 |
| 6920773 | Method and apparatus for manufacturing tubes by rolling | — | 2005-07-26 |
| 6892559 | Method and apparatus for manufacturing tubes | — | 2005-05-17 |
| 5389310 | Method and apparatus for dispersing gas into liquid | — | 1995-02-14 |
| 5358671 | Aerator device | — | 1994-10-25 |
| 5244097 | Apparatus for feeding air into a flotation cell | Launo L. Lilja, Valto J. Makitalo | 1993-09-14 |
| 5143600 | Apparatus for feeding air into a flotation cell | Launo L. Lilja, Valto J. Makitalo | 1992-09-01 |
| 4894129 | Method and apparatus for positioning sheet-like objects | — | 1990-01-16 |
| 4806213 | Method and apparatus for stripping electrolytic precipitate from supporting structures | Seppo J. Erlamo, Pentti K. Kujanpaa, Olli E. Ylimaki | 1989-02-21 |
| 4451291 | Method and apparatus for converting matte, particularly high-grade matte | — | 1984-05-29 |
| 4267877 | Apparatus for the continuous casting of an object of predetermined weight or size | Ossi T. Tonteri | 1981-05-19 |