Patent Assignment
Reel/Frame 025903/0019
Assignment of Assignor's Interest
Recorded: 2011-03-04
Pages: 10
Assignors
SHERMAN, SCOTT
Executed: 2011-02-16
PUGH, ROBERT
Executed: 2011-02-16
MAJKO, SEAN
Executed: 2011-02-15
SCHERSCHEL, STEVE
Executed: 2011-02-15
Assignee
TRICAN WELL SERVICE LTD.
645-7TH AVENUE SW, SUITE 2900, CALGARY, ALBERTA, T2P 4G8, CANADA
Covered Property
(1)
Apparatus and Method for Stimulating Subterranean Formations
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Jan 13, 2016
From: TRICAN WELL SERVICE LTD.
To: COMPUTERSHARE TRUST COMPANY OF CANADA
Reel/Frame 037482/0702 →
Assignment of Assignor's Interest
Apr 21, 2017
From: TRICAN WELL SERVICE LTD.
To: DRECO ENERGY SERVICES ULC
Reel/Frame 042090/0386 →
Security Interest
Jun 2, 2022
From: FEDORA, BRADLEY P.D.
To: OLYMPIA TRUST COMPANY
Reel/Frame 060087/0101 →
Merger and Change of Name
Aug 17, 2023
From: DRECO ENERGY SERVICES ULC; NOV CANADA ULC
To: NOV CANADA ULC
Reel/Frame 064630/0306 →