Patent Assignment
Reel/Frame 025866/0530
Assignment of Assignor's Interest
Recorded: 2011-02-25
Pages: 12
Assignors
DUYVESTEYN, WILLEM P.C.
Executed: 2011-02-10
MAHENDRA, JOSHI
Executed: 2011-02-24
KIFT, JULIAN
Executed: 2011-02-10
ZELNIK, DOMINIC J.
Executed: 2011-02-22
THOMPSON, WHIP C.
Executed: 2011-02-10
HOFFMAN, CHERISH M.
Executed: 2011-02-10
Assignee
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, S.W., ERNST & YOUNG TOWER, CALGARY, ALBERTA, T2P 5E9, CANADA
Covered Property
(1)
Methods for Extracting Bitumen from Bituminous Material
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Jan 23, 2013
From: MARATHON OIL CANADA CORPORATION
To: MARATHON CANADIAN OIL SANDS HOLDING LIMITED
Reel/Frame 029676/0704 →
Change of Name
May 22, 2013
From: MARATHON CANADIAN OIL SANDS HOLDING LIMITED
To: MARATHON OIL CANADA CORPORATION
Reel/Frame 030467/0595 →
Assignment of Assignor's Interest
Jan 15, 2014
From: MARATHON OIL CANADA CORPORATION
To: SHELL CANADA ENERGY; CHEVRON CANADA LIMITED
Reel/Frame 031972/0440 →
Assignment of Assignor's Interest
Jul 2, 2014
From: MARATHON OIL CANADA CORPORATION
To: SHELL CANADA ENERGY
Reel/Frame 033234/0189 →
Nunc Pro Tunc Assignment
Feb 27, 2018
From: SHELL CANADA ENERGY
To: CANADIAN NATURAL UPGRADING LIMITED
Reel/Frame 045054/0463 →