Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5476793 | Method for deciding the reactivity and soot index of carbon products | Knut Bergli, Trygve Foosnaes | 1995-12-19 |
| 5473628 | Device for ring section furnace | Gudmund Tokvam | 1995-12-05 |
| 5366901 | Apparatus for analyzing carbon products | Knut Bergli, Trygve Foosnaes | 1994-11-22 |
| 5071534 | Aluminum electrolysis cell with continuous anode | Hans Kristian Holmen, Jan Hurlen, Sigmund Gjorven | 1991-12-10 |
| 4659442 | Method of reducing the loss of carbon from anodes when producing aluminum by electrolytic smelting, and an inert anode top for performing the method | Knut Bergli, Jan Hurlen | 1987-04-21 |
| 4552530 | Ring section baking furnace and procedure for operating same | Kare Gunnes, Olav Lid | 1985-11-12 |