Patent Assignment
Reel/Frame 011986/0990
Assignment of Assignor's Interest
Recorded: 2001-07-17
Pages: 3
Assignee
AXIS GEOPHYSICS, INC.
225 E. 16TH AVENUE, SUITE 1200, DENVER, COLORADO, 80203
Covered Property
(1)
System for Estimating Azimuthal Variations in Seismic Data
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
Nov 12, 2003
From: AXIS GEOPHYSICS, INC.; GMG/AXIS, INC.
To: INPUT/OUTPUT, INC.
Reel/Frame 014682/0196 →
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 →