Patent Assignment
Reel/Frame 015600/0975
Assignment of Assignor's Interest
Recorded: 2004-06-21
Pages: 2
Assignor
RUNIA, DOUWE JOHANNES
Executed: 2004-01-12
Assignee
SHELL OIL COMPANY
P.O. BOX 2463, 910 LOUISIANA, HOUSTON, TEXAS, 77252-2463
Covered Property
(1)
Well Drilling Bit
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.