Assignment of Assignor's Interest

Recorded: 2001-03-26 Pages: 4

Assignors

ALEXANDER, CARMON H.

Executed: 2000-08-02

WEDDLE, CURTIS E. III

Executed: 2001-03-16

Assignee

CONOCO, INC.

P.O. BOX 2197, HOUSTON, TEXAS, 77252

Covered Property (1)

Method for Detecting a Leak in a Drill String Valve

Patent: 6,499,540 →

Application: 09/730,891 →

Publication: US 2002/0066569

Related Assignments (2)

Other recorded transfers of the patent in this record — the chain of ownership.