Patent Assignment
Reel/Frame 021936/0641
Change of Name
Recorded: 2008-12-04
Pages: 2
Assignor
INPUT/OUTPUT, INC.
Executed: 2007-09-21
Assignee
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BOULEVARD, SUITE 400, HOUSTON, TEXAS, 77042-2839
Covered Property
(1)
Apparatus and Method for Seismic Data Acquisition
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jan 18, 2005
From: BEHN, LAWRENCE P.; CHESTER, JOHN; DEKKERS, LEO; DOWNEY, JOHN
To: INPUT/OUTPUT, INC.
Reel/Frame 016193/0294 →
Assignment of Assignor's Interest
May 21, 2010
From: ION GEOPHYSICAL CORPORATION
To: INOVA GEOPHYSICAL CORPORATION
Reel/Frame 024424/0138 →
Assignment of Assignor's Interest
Jul 9, 2010
From: ION GEOPHYSICAL CORPORATION
To: INOVA LTD.
Reel/Frame 024651/0695 →