IP Library Assignment 072498/0097
Patent Assignment
Reel/Frame 072498/0097

Assignment of Assignor's Interest

Recorded: 2025-10-07 Pages: 5
Assignors
BURCH, DARRELL
Executed: 2021-07-12
VERISSIMO, EMERSON JOSE
Executed: 2021-06-29
DUDLEY, TIMOTHY
Executed: 2021-07-23
Assignee
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BOULEVARD, SUITE 400, HOUSTON, TEXAS, 77042-2839
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: ION GEOPHYSICAL CORPORATION
To: TGS-NOPEC GEOPHYSICAL COMPANY
Reel/Frame 072498/0393 →
Security Interest Jun 18, 2026
From: TGS-NOPEC GEOPHYSICAL COMPANY
To: KROLL TRUSTEE SERVICES LIMITED
Reel/Frame 075007/0464 →