IP Library › Assignment 037251/0479
Patent Assignment
Reel/Frame 037251/0479

Assignment of Assignor's Interest

Recorded: 2015-12-09 Pages: 3
Assignor
WOMACK, WILLARD
Executed: 2015-12-07
Assignee
PGS GEOPHYSICAL A.S.
P.O. BOX 251 LILLEAKER, OSLO, 0216, NORWAY
Covered Properties (2)
Optical Filter
Pressure Equalized Passive Bulk Optic Thin Film Optical Filter
Application: 62/093,204 →
Related Assignments (2)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest Nov 9, 2018
From: PGS GEOPHYSICAL AS
To: PGS AMERICAS, INC.
Reel/Frame 047467/0183 →
Assignment of Assignor's Interest Feb 12, 2019
From: PGS AMERICAS, INC
To: GEOSPACE TECHNOLOGIES CORPORATION
Reel/Frame 048305/0771 →