Patent Assignment
Reel/Frame 027553/0273
Assignment of Assignor's Interest
Recorded: 2012-01-18
Pages: 4
Assignee
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BOULEVARD, HOUSTON, TEXAS, 77072
Covered Property
(1)
Seal Ring Backup Devices and Methods for Preventing Extrusion