EB

Emmanuel Balster

Schlumberger Technology: 1 patents #3,893 of 7,293Top 55%
Overall (All Time): #2,837,122 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10174582 Wellbore annular safety valve and method Eirik Windegaard, Bjoern Staale Varnes, Niek Dijkstra, Geir Meling, Graham Watson +2 more 2019-01-08