Patent Assignment
Reel/Frame 022023/0180
Assignment of Assignor's Interest
Recorded: 2008-12-23
Pages: 3
Assignor
MARATHON OIL COMPANY
Executed: 2008-11-30
Assignee
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, S.W., ERNST & YOUNG TOWER, SUITE 2400, CALGARY, ALBERTA, T2P 5E9, CANADA
Covered Property
(1)
Separation of Tailings That Include Asphaltenes
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Mar 21, 2008
From: DUYVESTEYN, WILLEM P.C.
To: MARATHON OIL COMPANY
Reel/Frame 020686/0181 →
Assignment of Assignor's Interest
Dec 23, 2008
From: KIFT, JULIAN
To: MARATHON OIL CANADA CORPORATION
Reel/Frame 022023/0137 →
Change of Name
Jan 23, 2013
From: MARATHON OIL CANADA CORPORATION
To: MARATHON CANADIAN OIL SANDS HOLDING LIMITED
Reel/Frame 029675/0197 →
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
Dec 9, 2015
From: MARATHON OIL CANADA CORPORATION
To: MARATHON OIL CANADA CORPORATION; SHELL CANADA ENERGY
Reel/Frame 037245/0777 →
Nunc Pro Tunc Assignment
Feb 27, 2018
From: SHELL CANADA ENERGY
To: CANADIAN NATURAL UPGRADING LIMITED
Reel/Frame 045054/0463 →