JR

Jan B. Ronhaug

NA Norsk Hydro Asa: 3 patents #47 of 584Top 9%
📍 Porsgrunn, NO: #42 of 184 inventorsTop 25%
Overall (All Time): #1,662,948 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5167700 Method and apparatus for remelting and refining or magnesium and magnesium alloys Oddmund Wallevik 1992-12-01
D271588 Metal bar Christian S. Bakken 1983-11-29
4385931 Method and furnace for refining of magnesium Oddmund Wallevik 1983-05-31