Patent Assignment
Reel/Frame 040747/0481
Assignment of Assignor's Interest
Recorded: 2016-12-22
Pages: 3
Assignor
ZHANG, KEWEI
Executed: 2007-12-13
Assignee
TRICAN WELL SERVICE LTD.
645-7TH AVENUE S.W., SUITE 2900, CALGARY, T2P 4G8, CANADA
Covered Property
(1)
Method for Making Particulate Slurries and Particulate Slurry Compositions
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.