IP Library Assignment 018549/0966
Patent Assignment
Reel/Frame 018549/0966

Assignment of Assignor's Interest

Recorded: 2006-11-24 Pages: 4
Assignors
ANGMAN, PER G.
Executed: 2006-09-19
TESSARI, ROBERT
Executed: 2006-09-20
Assignee
TESCO CORPORATION
6204 - 6A STREET SE, CALGARY, T2H 2B7, CANADA
Covered Property (1)
Method for Drilling with Casing
Patent: 7,475,742 →
Application: 11/279,223 →
Publication: US 2007/0051538
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jan 18, 2013
From: TESCO CORPORATION
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 029659/0540 →