SS

Sigve Skjeldal

EA Elkem As: 2 patents #14 of 96Top 15%
📍 Tvedestrand, NO: #10 of 43 inventorsTop 25%
Overall (All Time): #2,338,601 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
RE32742 Method of producing light weight cement for use of cementation of oil and gas wells — 1988-09-06
4385935 Method of producing light weight cement for use of cementation of oil and gas wells — 1983-05-31