Patent Assignment
Reel/Frame 020485/0352
Assignment of Assignor's Interest
Recorded: 2008-02-08
Pages: 14
Assignors
COOK, ROBERT LANCE
Executed: 2007-11-27
BRISCO, DAVID PAUL
Executed: 2007-12-16
RING, LEV
Executed: 2007-12-14
BULLOCK, MICHAEL DENNIS
Executed: 2007-12-10
Assignee
SHELL OIL COMPANY
910 LOUISIANA, HOUSTON, TEXAS, 77002
Covered Property
(1)
Forming a Wellbore Casing While Simultaneously Drilling a Wellbore
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.