IJ

Idar G. Johnsen

DA Den Norske Stats Oljeselskap A.S.: 1 patents #59 of 220Top 30%
📍 Holmestrand, NO: #8 of 41 inventorsTop 20%
Overall (All Time): #3,833,475 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5246080 High pressure converter for deep well drilling Kunt Horvei 1993-09-21