Patent Assignment
Reel/Frame 035706/0400
Assignment of Assignor's Interest
Recorded: 2015-05-18
Pages: 4
Assignors
PRILL, JONATHAN RYAN
Executed: 2015-05-14
MARCHAND, NICHOLAS RYAN
Executed: 2015-05-14
JOHNS, RALPH WILLIAM GRAEME
Executed: 2015-05-16
Assignee
DRECO ENERGY SERVICES ULC
2900 MANULIFE PLACE, 10180-101 STREET, EDMONTON, ALBERTA, T5J 3V5, CANADA
Covered Property
(1)
Method and Apparatus for Controlling Downhole Rotational Rate of a Drilling Tool
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.