Patent Assignment
Reel/Frame 029484/0834
Assignment of Assignor's Interest
Recorded: 2012-12-17
Pages: 9
Assignors
HARTOG, ARTHUR H.
Executed: 2012-10-22
UNDERHILL, WILLIAM B.
Executed: 2012-09-24
SEVERANCE, SIMON
Executed: 2012-12-10
RIST, SAMANTHA
Executed: 2012-09-27
Assignee
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE, SUGAR LAND, TEXAS, 77478
Covered Property
(1)
Methods for Locating A Cement Sheath in A Cased Wellbore6