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Per Oscar Wiig

NA Norsk Hydro Asa: 1 patents #182 of 584Top 35%
Overall (All Time): #3,648,610 of 4,157,543Top 90%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5900151 Method for sulphate removal magnesium chloride brine Thor Thorsen, Ole W.ae butted.rnes, Birger Langseth, Carl Margcotte 1999-05-04