Assignment of Assignor's Interest

Recorded: 2006-10-16 Pages: 6

Assignors

TATE, BARRY J.

Executed: 2006-09-20

WARREN, TOMMY M.

Executed: 2006-10-05

TESSARI, ROBERT M.

Executed: 2006-09-20

Assignee

TESCO CORPORATION

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

Covered Property (1)

Method for Drilling with a Wellbore Liner

Patent: 7,647,990 →

Application: 11/461,248 →

Publication: US 2007/0175665

Related Assignments (1)

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