IP Library Assignment 072498/0393
Patent Assignment
Reel/Frame 072498/0393

Assignment of Assignor's Interest

Recorded: 2025-10-07 Pages: 17
Assignor
ION GEOPHYSICAL CORPORATION
Executed: 2022-08-31
Assignee
TGS-NOPEC GEOPHYSICAL COMPANY
10451 CLAY ROAD, HOUSTON, TEXAS, 77041
Covered Property (1)
Direct Fill Chamber
Application: 19/351,998 →
Publication: US 2026/0036708
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Oct 7, 2025
From: BURCH, DARRELL; VERISSIMO, EMERSON JOSE; DUDLEY, TIMOTHY
To: ION GEOPHYSICAL CORPORATION
Reel/Frame 072498/0097 →
Security Interest Jun 18, 2026
From: TGS-NOPEC GEOPHYSICAL COMPANY
To: KROLL TRUSTEE SERVICES LIMITED
Reel/Frame 075007/0464 →