IP Library Assignment 025740/0612
Patent Assignment
Reel/Frame 025740/0612

Assignment of Assignor's Interest

Recorded: 2011-02-03 Pages: 5
Assignor
SONNIER, ERROL A.
Executed: 2010-12-14
Assignee
TESCO CORPORATION
3993 WEST SAM HOUSTON PARKWAY NORTH, SUITE 100, HOUSTON, TEXAS, 77043
Covered Property (1)
Apparatus for Applying an Axial Force to Well Pipe Slips
Patent: 8,573,312 →
Application: 12/977,173 →
Publication: US 2012/0160518
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger Sep 7, 2018
From: TESCO CORPORATION
To: NABORS DRILLING TECHNOLOGIES USA, INC.
Reel/Frame 047031/0574 →