Patent Assignment
Reel/Frame 012750/0224
Corrective Assignment to Add Inventor's Name That Was Previously Recorded on Reel 012444, Frame 0983.
Recorded: 2002-03-25
Pages: 7
Assignors
RAGAN, GLEN
Executed: 2001-11-05
WILSON, DAVID
Executed: 2001-11-05
GANNON, JEFFREY C.
Executed: 2001-11-02
PHAM, HAI T.
Executed: 2001-11-05
Assignee
INPUT/OUTPUT INC.
12300 CHARLES E. SELECMAN DRIVE, STAFFORD, TEXAS, 77477
Covered Property
(1)
Calibration of Sensors
Patent:
6,758,080 →
Application:
09/914,422 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 14, 2001
From: RAGAN, GLEN; WILSON, DAVID; GANNON, JEFFREY C.
To: INPUT/OUTPUT, INC.
Reel/Frame 012444/0983 →
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 →