Patent Assignment
Reel/Frame 024754/0426
Change of Name
Recorded: 2010-07-28
Pages: 2
Assignor
INPUT/OUTPUT, INC.
Executed: 2007-09-21
Assignee
ION GEOPHYSICAL CORPORATION
2105 CITY WEST BOULEVARD, SUITE 400, HOUSTON, TEXAS, 77042-2839
Covered Property
(1)
Heads-Up Navigation for Seismic Data Acquisition
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.