IP Library › Assignment 015617/0021
Patent Assignment
Reel/Frame 015617/0021

Assignment of Assignor's Interest

Recorded: 2005-01-21 Pages: 3
Assignors
HART, PAUL R.
Executed: 2005-01-07
MAHARAJH, EDWARD M.
Executed: 2005-01-12
Assignee
BAKER HUGHES INCORPORATED
3900 ESSEX LANE, SUITE 1200, HOUSTON, TEXAS, 77027
Covered Property (1)
Process for Extracting Bitumen
Patent: 7,357,857 →
Application: 10/999,024 →
Publication: US 2006/0113218
Related Assignments (5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Sep 16, 2010
From: FRYER, SCOTT J.
To: BAKER HUGHES INCORPORATED
Reel/Frame 024990/0669 →
Assignment of Assignor's Interest Sep 16, 2010
From: BAKER HUGHES INCORPORATED
To: SHELL CANADA ENERGY; MARATHON OIL SANDS L.P.; CHEVRON CANADA LIMITED
Reel/Frame 024990/0676 →
Nunc Pro Tunc Assignment Sep 16, 2010
From: FRYER, SCOTT J.
To: BAKER HUGHES INCORPORATED
Reel/Frame 024990/0692 →
Confirmatory Assignment Sep 16, 2010
From: BAKER HUGHES INCORPORATED
To: SHELL CANADA ENERGY; MARATHON OIL SANDS L.P.; CHEVRON CANADA LIMITED
Reel/Frame 024990/0700 →
Nunc Pro Tunc Assignment Feb 27, 2018
From: SHELL CANADA ENERGY
To: CANADIAN NATURAL UPGRADING LIMITED
Reel/Frame 045054/0463 →