Patent Assignment
Reel/Frame 039686/0253
Assignment of Assignor's Interest
Recorded: 2016-09-09
Pages: 3
Assignor
NATIONAL OILWELL VARCO, L.P.
Executed: 2015-12-14
Assignee
DRECO ENERGY SERVICES ULC
10180 - 101 STREET, EDMONTON, T5J 3V5, CANADA
Covered Property
(1)
Drilling Rig System with Self-Elevating Drill Floor
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.