Patent Assignment
Reel/Frame 018301/0225
Assignment of Assignor's Interest
Recorded: 2006-09-26
Pages: 5
Assignor
LAYCOCK, MARTIN
Executed: 2006-07-14
Assignee
WESTERNGECO, L.L.C.
10001 RICHMOND AVENUE, HOUSTON, TEXAS, 77042
Covered Property
(1)
Seismic Acquisition System
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.