IP Library › Assignment 021997/0250
Patent Assignment
Reel/Frame 021997/0250

Assignment of Assignor's Interest

Recorded: 2008-12-17 Pages: 3
Assignors
DUYVESTEYN, WILLEM P.C.
Executed: 2008-03-24
MORLEY, RAYMOND L.
Executed: 2008-04-07
Assignee
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, S.W., ERNST & YOUNG TOWER, SUITE 2400, CALGARY, ALBERTA, T2P 5E9, CANADA
Covered Property (1)
Oxidation of Asphaltenes
Patent: 7,811,444 →
Application: 11/450,591 →
Publication: US 2007/0284283
Related Assignments (2)
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 029675/0197 →
Change of Name May 22, 2013
From: MARATHON CANADIAN OIL SANDS HOLDING LIMITED
To: MARATHON OIL CANADA CORPORATION
Reel/Frame 030467/0595 →