ET

Edward Michael Tollefsen

Schlumberger Technology: 4 patents #1,558 of 7,293Top 25%
Overall (All Time): #1,165,249 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10598809 Downhole electromagnetic sensing techniques Jung Kee Chung, Sameer Bhoite, Dean Homan, Jaroslav Dobos 2020-03-24
9228430 Methods for evaluating cuttings density while drilling John Rasmus, William Lesso, John James, Scott Paul, Amanda L. Weber +1 more 2016-01-05
8727035 System and method for managing temperature in a wellbore Daniel Crowel, Alexis S. Husser, Barbara J. A. Zielinska 2014-05-20
5477921 Method and system for logging a well while fishing for the logging tool 1995-12-26