IP Library › Assignment 022023/0025
Patent Assignment
Reel/Frame 022023/0025

Assignment of Assignor's Interest

Recorded: 2008-12-23 Pages: 3
Assignor
WESTERN OIL SANDS USA, INC.
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)
Biodiesel Production and Use in Oil Sands Processing
Patent: 7,824,453 →
Application: 11/517,730 →
Publication: US 2008/0060257
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Mar 23, 2007
From: WILLEM P.C. DUYVESTEYN
To: WESTERN OIL SANDS USA, INC.
Reel/Frame 019067/0208 →
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 Oct 17, 2014
From: MARATHON OIL CANADA CORPORATION
To: SHELL CANADA ENERGY; CHEVRON CANADA LIMITED
Reel/Frame 033973/0309 →