BH

Bjørn Erling Hagen

WH Weatherford Technology Holdings: 1 patents #412 of 753Top 55%
Overall (All Time): #2,889,789 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9970258 Remotely operated stage cementing methods for liner drilling installations Ivan Andre Barannikow, Douglas Brian Farley, Egor Dudochkin, Steven Michael Rosenberg, Richard Dalzell 2018-05-15