Patent Assignment
Reel/Frame 030955/0847
Assignment of Assignor's Interest
Recorded: 2013-08-07
Pages: 3
Assignor
HUNTER, DOUGLAS A.
Executed: 2007-10-31
Assignee
CANRIG DRILLING TECHNOLOGY LTD.
8223 WILLOW PLACE DRIVE SOUTH, HOUSTON, TEXAS, 77070
Covered Property
(1)
Oilfield Tubular Spin-in and Spin-Out Detection for Making-Up and Breaking-Out Tubular Strings
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.