Patent Assignment
Reel/Frame 027483/0047
Assignment of Assignor's Interest
Recorded: 2012-01-05
Pages: 4
Assignee
CANRIG DRILLING TECHNOLOGY LTD.
8223 WILLOW PLACE DRIVE SOUTH, HOUSTON, TEXAS, 77070
Covered Property
(1)
Weight-Based Interlock Apparatus and Methods
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.