Patent Assignment
Reel/Frame 023071/0775
Assignment of Assignor's Interest
Recorded: 2009-08-10
Pages: 2
Assignor
HAMILTON, JAMES F
Executed: 2007-11-06
Assignee
PRECISION DRILLING CORPORATION
4400, 150 - 6TH AVENUE SW, CALGARY, T2P 3Y7, CANADA
Covered Property
(1)
Method and Apparatus for Directional Drilling with Variable Drill String Rotation
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.