Patent Assignment
Reel/Frame 026229/0690
Assignment of Assignor's Interest
Recorded: 2011-05-05
Pages: 5
Assignors
VAN ZANTEN, RYAN
Executed: 2011-04-19
HORTON, DAVID
Executed: 2011-04-20
TANCHE-LARSEN, PER-BJARTE
Executed: 2011-04-19
Assignee
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BOULEVARD, HOUSTON, TEXAS, 77072
Covered Property
(1)
Surfactant Additives Used to Retain Producibility While Drilling