IP Library Assignment 037471/0031
Patent Assignment
Reel/Frame 037471/0031

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: 9,822,587 →
Application: 14/961,544 →
Publication: US 2016/0084004
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jan 8, 2016
From: PRILL, JONATHAN RYAN; MARCHAND, NICHOLAS RYAN; JOHNS, RALPH WILLIAM GRAEME
To: DRECO ENERGY SERVICES LTD.
Reel/Frame 037442/0867 →
Merger Jan 24, 2024
From: DRECO ENERGY SERVICES ULC
To: NOV CANADA ULC
Reel/Frame 066551/0001 →