Patent Assignment
Reel/Frame 015081/0273
Assignment of Assignor's Interest
Recorded: 2004-08-24
Pages: 8
Assignors
COOK, ROBERT LANCE
Executed: 2004-02-24
BRISCO, DAVID P.
Executed: 2004-04-02
STEWART, R. BRUCE
Executed: 2004-06-03
RING, LEV
Executed: 2004-07-15
HAUT, RICHARD CARL
Executed: 2004-06-07
MACK, ROBERT DONALD
Executed: 2004-03-18
DUELL, ALAN
Executed: 2004-06-14
Assignee
SHELL OIL COMPANY
910 LOUISIANA STREET, HOUSTON, TEXAS, 77252
Covered Property
(1)
Method of Creating a Casing in a Borehole
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.