Patent Assignment
Reel/Frame 037485/0339
Assignment of Assignor's Interest
Recorded: 2016-01-12
Pages: 4
Assignors
LIU, JILI
Executed: 2013-02-26
SWITZER, DAVID A.
Executed: 2013-02-26
LOGAN, AARON W.
Executed: 2013-02-26
Assignee
EVOLUTION ENGINEERING INC.
BAY 2, 1480 28 STREET NE, CALGARY, T2A 7W6, CANADA
Covered Property
(1)
Fluid Pressure Pulse Generating Apparatus and Method of Using Same