Patent Assignment
Reel/Frame 011519/0252
Assignment of Assignor's Interest
Recorded: 2001-02-12
Pages: 5
Assignor
COOK, ROBERT LANCE
Executed: 2000-04-04
Assignee
SHELL OIL COMPANY
HOUSTON, TEXAS
Covered Property
(1)
Isolation of Subterranean Zones
Patent:
6,328,113 →
Application:
09/440,338 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.