Assignment of Assignor's Interest

Recorded: 2003-05-27 Pages: 2

Assignor

CALVERT, RODNEY WILLIAM

Executed: 2002-09-10

Assignee

SHELL OIL COMPANY

P.O. BOX 2463, 910 LOUISIANA, HOUSTON, TEXAS, 77252-2463

Covered Property (1)

Concentrating Seismic Energy in a Selected Target Point in an Underground Formation

Patent: 6,788,619 →

Application: 10/235,004 →

Publication: US 2003/0048695

Related Assignments (1)

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