Patent Assignment
Reel/Frame 021196/0851
Assignment of Assignor's Interest
Recorded: 2008-07-05
Pages: 6
Assignor
WELKER, KENNETH E.
Executed: 2007-08-02
Assignee
WESTERNGECO L. L. C.
10001 RICHMOND AVENUE, IP DEPT - JEFFREY GRIFFIN, HOUSTON, TEXAS, 77042
Covered Property
(1)
Performing Quality Control with Respect to Positioning of Survey Hardware
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.