Patent Assignment
Reel/Frame 027338/0828
Assignment of Assignor's Interest
Recorded: 2011-12-06
Pages: 5
Assignors
DUSTERHOFT, DALE
Executed: 2007-03-20
BROWNE, DAVID
Executed: 2007-04-03
VAUGHAN, JASON
Executed: 2007-03-20
LUK, SAM
Executed: 2007-03-20
TULISSI, MICHAEL
Executed: 2007-03-20
Assignee
TRICAN WELL SERVICE, LTD.
645-7TH AVENUE S.W., SUITE 2900, CALGARY, ALBERTA, T2P 4G8, CANADA
Covered Property
(1)
Fracturing Method and Apparatus Utilizing Gelled Isolation Fluid
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.