Assignment of Assignor's Interest

Recorded: 2008-11-21 Pages: 2

Assignor

ERIKSEN, ERIK P., MR.

Executed: 2008-11-21

Assignee

TESCO CORPORATION

6204 - 6A STREET SE, CALGARY AB, T2H 2B7, CANADA

Covered Property (1)

Method and Apparatus for Retrieving and Installing a Drill Lock Assembly for Casing Drilling

Patent: 8,146,672 →

Application: 12/275,396 →

Publication: US 2010/0126734

Related Assignments (1)

Other recorded transfers of the patent in this record — the chain of ownership.