Patent Assignment
Reel/Frame 016289/0210
Assignment of Assignor's Interest
Recorded: 2005-07-20
Pages: 3
Assignor
HU, GUOQIANG
Executed: 2005-06-09
Assignee
TESCO CORPORATION
6204 - 6A STREET SE, CALGARY, T2H 2B7, CANADA
Covered Property
(1)
Drill String Valve Assembly
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.