Patent Assignment
Reel/Frame 020485/0398
Assignment of Assignor's Interest
Recorded: 2008-02-08
Pages: 30
Assignors
COOK, ROBERT LANCE
Executed: 2007-11-27
BRISCO, DAVID PAUL
Executed: 2007-12-16
STEWART, R. BRUCE
Executed: 2007-11-30
RING, LEV
Executed: 2007-12-14
FILIPPOV, ANDREI GREGORY
Executed: 2007-11-28
MACK, ROBERT DONALD
Executed: 2008-01-03
DUELL, ALAN B.
Executed: 2007-11-28
Assignee
SHELL OIL COMPANY
910 LOUISIANA, HOUSTON, TEXAS, 77002
Covered Property
(1)
Expandable Tubulars with a Radial Passage and Wall Portions with Different Wall Thicknesses
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.