Patent Assignment
Reel/Frame 016514/0162
Assignment of Assignor's Interest
Recorded: 2005-04-26
Pages: 8
Assignors
VIGEN, ERIK
Executed: 2005-03-14
WELKER, KENNETH
Executed: 2005-03-23
FRIVIK, SVEIN ARNE
Executed: 2005-03-15
IRANPOUR, KAMBIZ
Executed: 2005-03-23
Assignee
WESTERNGECO, L.L.C.
10001 RICHMOND AVENUE, HOUSTON, TEXAS, 77042
Covered Property
(1)
Apparatus, Systems and Methods for Determining Position of Marine Seismic Acoustic Receivers
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.