Patent Assignment
Reel/Frame 014163/0855
Assignment of Assignor's Interest
Recorded: 2003-06-13
Pages: 2
Assignor
VAN RIET, EGBERT JAN
Executed: 2003-02-21
Assignee
SHELL OIL COMPANY
P.O. BOX 2463, 910 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.