Change of Name

Recorded: 2016-01-08 Pages: 5

Assignor

DRECO ENERGY SERVICES LTD.

Executed: 2010-10-23

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

Patent: 9,206,647 →

Application: 12/988,274 →

Publication: US 2011/0036631

Related Assignments (2)

Other recorded transfers of the patent in this record — the chain of ownership.