Patent Assignment
Reel/Frame 023740/0754
Assignment of Assignor's Interest
Recorded: 2010-01-06
Pages: 3
Assignor
HRE LTD
Executed: 2008-09-05
Assignee
CANADIAN ENERGY SERVICES, LP
SUITE 300 ENERGY PLAZA, 311 - 6TH AVENUE S.W., CALGARY, T2P 3H2, CANADA
Covered Property
(1)
Drilling Fluid Additive for Reducing Lost Circulation in a Drilling Operation
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.