Patent Assignment
Reel/Frame 015356/0152
Assignment of Assignor's Interest
Recorded: 2004-05-24
Pages: 2
Assignor
RIET, EGBERT JAN VAN
Executed: 2004-03-11
Assignee
SHELL OIL COMPANY
P.O. BOX 2463, 900 LOUISIANA, HOUSTON, TEXAS, 77252-2463
Covered Property
(1)
Dynamic Annular Pressure Control Apparatus and Method
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.