Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6764305 | Device for supporting a conveyor belt used in the continuously operated sintering of a material bed | Eero Väänänen, Olavi Tulkki | 2004-07-20 |
| 6698582 | Belt for the thermal treatment of a continuously operated material bed | Pekka Niemelä, Eero Väänänen | 2004-03-02 |
| 6401908 | Apparatus for processing lumpy material | Eero V{umlaut over (aa)}nänen | 2002-06-11 |
| 6253927 | Roller screen | Eero Väänänen, Lauri A. Mustikka, Pekka Rantala | 2001-07-03 |
| 6099301 | Feed apparatus for batch preparation feed mixture for feeding into smelting furnace | Matti Elias Honkaniemi, Pekka Niemelä, Risto M. Heikkila, Launo L. Lilja | 2000-08-08 |
| 4761892 | Apparatus for measuring the length of electrodes in an electric furnace | — | 1988-08-09 |
| 4708640 | Apparatus for batch preparation and feeding into the smelting process | Matti E. Honkaniemi, Lauri A. Mustikka, Pentti O. Hokkanen, Risto M. Heikkila, Launo L. Lilja | 1987-11-24 |
| 4705474 | Method and apparatus for batch preparation and feeding into the smelting process | Matti E. Honkaniemi, Lauri A. Mustikka, Pentti O. Hokkanen, Risto M. Heikkila, Launo L. Lilja | 1987-11-10 |
| 4622677 | Method and device for clamping the electrode contact shoes around the electrode of an electric furnace | Heikki Tuovinen, Kauko K. Rinne, Matti E. Honkaniemi, Risto M. Heikkila | 1986-11-11 |
| 4491952 | Electric furnace dome | Matti E. Honkaniemi, Aimo Nurminen, Matias Virta, Veikko Iisakka, Helge Krogerus +3 more | 1985-01-01 |
| 4458352 | Method and device providing mobility to a contact shoe independent of an electrode in an electric-arc furnace | Frans H. Tuovinen, Risto M. Heikkila, Bengt J. F. Norrman, Matti E. Honkaniemi | 1984-07-03 |