IP Library Assignment 042661/0455
Patent Assignment
Reel/Frame 042661/0455

Assignment of Assignor's Interest

Recorded: 2017-06-09 Pages: 3
Assignor
WOMACK, WILLARD
Executed: 2015-12-03
Assignee
PGS GEOPHYSICAL AS
P.O. BOX 251 LILLEAKER, OSLO, 0216, NORWAY
Covered Property (1)
Pressure Insensitive Interferometer
Application: 15/529,444 →
Publication: US 2017/0363412
Related Assignments (2)
Other recorded transfers of the patent 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 Jan 3, 2019
From: PGS AMERICAS, INC
To: GEOSPACE TECHNOLOGIES CORPORATION
Reel/Frame 047894/0770 →