PE

Patrick Ehret

Schlumberger Technology: 1 patents #3,893 of 7,293Top 55%
Overall (All Time): #3,507,733 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6545477 Method and apparatus for determining the resistivity of a formation through which a cased well passes Paul Beguin, Dominique Benimeli, Francois Hecquet, Peter van der Wal, Marie-Therese Gounot 2003-04-08