Patent Assignment
Reel/Frame 011679/0115
Assignment of Assignor's Interest
Recorded: 2001-04-05
Pages: 12
Assignors
COOK, ROBERT LANCE
Executed: 2001-02-22
HAUT, RICHARD
Executed: 2001-02-23
BRISCO, DAVID P.
Executed: 2001-02-22
MACK, ROBERT
Executed: 2001-02-22
STEWART, R. BRUCE
Executed: 2001-03-16
DUELL, ALAN
Executed: 2001-02-26
RING, LEV
Executed: 2001-02-22
Assignee
SHELL OIL
910 LOUISIANA STREET, SUITE 4719, HOUSTON, TEXAS, 77252
Covered Property
(1)
Forming a Wellbore Casing While Simultaneously Drilling a Wellbore
Patent:
6,640,903 →
Application:
09/523,468 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.