PN

Per Olav Nos

EA Elkem As: 2 patents #14 of 96Top 15%
EA Elkem Asa: 1 patents #22 of 72Top 35%
📍 Askim, NO: #4 of 19 inventorsTop 25%
Overall (All Time): #1,606,783 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6811677 Electrolytic cell for the production of aluminum and a method for maintaining a crust on a sidewall and for recovering electricity Jan A. Aune, Kai Johansen 2004-11-02
4752218 Ceramic composite material and a lining for metallurgical smelting furnaces wherein a ceramic composite material is used Otto Kristian Sonju 1988-06-21
4674728 Sidewall for a metallurgical smelting furnace Jan A. Aune 1987-06-23