Patent Assignment
Reel/Frame 023389/0979
Assignment of Assignor's Interest
Recorded: 2009-10-19
Pages: 3
Assignor
ALLISON, DAVID B.
Executed: 2009-04-29
Assignee
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BOULEVARD, HOUSTON, TEXAS, 77072
Covered Property
(1)
Swellable Packer with Composite Material End Rings
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.