Patent Assignment
Reel/Frame 015622/0354
Assignment of Assignor's Interest
Recorded: 2005-01-25
Pages: 11
Assignors
SELVAKUMAR, ARJUN
Executed: 2001-11-16
GOLDBERG, HOWARD D.
Executed: 2001-11-26
YU, DU-LI
Executed: 2001-11-27
IP, MATTHEW
Executed: 2001-12-07
SCHMIDT, MARTIN A.
Executed: 2002-02-23
MARSH, JAMES L.
Executed: 2001-11-21
FUNG, BING-FAI
Executed: 2001-11-19
Assignee
INPUT/OUTPUT, INC.
12300 PARC CREST DRIVE, STAFFORD, TEXAS, 77477
Covered Property
(1)
Sensor Design and Process
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Aug 22, 2005
From: SELVAKUMAR, ARJUN; GOLDBERG, HOWARD D.; YU, DU-LI; IP, MATTHEW
To: INPUT/OUTPUT, INC.
Reel/Frame 016656/0019 →
Security Agreement
Aug 22, 2014
From: ION GEOPHYSICAL CORPORATION; I/O MARINE SYSTEMS, INC.; GX TECHNOLOGY CORPORATION; ION EXPLORATION PRODUCTS (U.S.A.), INC.
To: PNC BANK, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 033598/0088 →
Security Agreement
Nov 4, 2014
From: ION GEOPHYSICAL CORPORATION; I/O MARINE SYSTEMS, INC.; GX TECHNOLOGY CORPORATION; ION EXPLORATION PRODUCTS (U.S.A.), INC.
To: U. S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 034181/0779 →