Assignment of Assignor's Interest

Recorded: 2005-01-06 Pages: 2

Assignor

VAN RIET, EGBERT JAN

Executed: 2003-05-27

Assignee

SHELL OIL COMPANY

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

Covered Property (1)

Choke for controlling the flow of drilling mud

Application: 10/520,606 →

Publication: US 2006/0086538

Related Assignments (2)

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