Patent Assignment
Reel/Frame 023815/0599
Assignment of Assignor's Interest
Recorded: 2010-01-20
Pages: 2
Assignor
RUNIA, DOUWE JOHANNES
Executed: 2009-12-28
Assignee
SHELL OIL COMPANY
910 LOUISIANA STREET, ONE SHELL PLAZA, INTELLECTUAL PROPERTY, HOUSTON, TEXAS, 77002
Covered Property
(1)
Drill Bit Assembly and Method of Performing an Operation in a Wellbore
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.