Patent Assignment
Reel/Frame 012591/0773
Assignment of Assignor's Interest
Recorded: 2002-01-31
Pages: 6
Assignors
SELVAKUMAR, ARJUN
Executed: 2001-09-27
YU, DULI
Executed: 2001-09-25
YU, LIANZHONG
Executed: 2001-10-03
JONES, BEN W.
Executed: 2001-10-04
Assignee
INPUT/OUTPUT, INC.
12300 CHARLES E. SELECMAN, DR., STAFFORD, TEXAS, 77477
Covered Property
(1)
Accelerometer with Folded Beams
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
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 →