Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6238457 | Method for feeding and directing reaction gas and solids into a smelting furnace and a multiadjustable burner designed for said purpose | Ismo Holmi, Tuomo Jokinen, Launo L. Lilja, Jussi Sipilä, Vesa Torola +1 more | 2001-05-29 |
| 5431373 | Method and apparatus for increasing the efficiency of a waste heat boiler | Launo L. Lilja, Kari Rajainmaki, Veli Salmi, Heikki Teperi | 1995-07-11 |