Patent Assignment
Reel/Frame 020071/0190
Assignment of Assignor's Interest
Recorded: 2007-11-06
Pages: 4
Assignee
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BOULEVARD, SUITE 400, HOUSTON, TEXAS, 77042-2839
Covered Property
(1)
Apparatus and Methods for Transmitting Unsolicited Messages During Seismic Data Acquisition
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.