Patent Assignment
Reel/Frame 013947/0870
Assignment of Assignor's Interest
Recorded: 2003-04-07
Pages: 3
Assignee
SHELL OIL COMPANY
910 LOUISIANA STREET, 47TH FLOOR, HOUSTON, TEXAS, 77002
Covered Property
(1)
Methods of Using Downhole Polymer Plug
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.