Patent Assignment
Reel/Frame 014031/0572
Assignment of Assignor's Interest
Recorded: 2003-05-01
Pages: 4
Assignee
NATIONAL-OILWELL, L.P.
1000 RICHMOND AVENUE, SUITE 400, HOUSTON, TEXAS, 77042-4200
Covered Property
(1)
Hydraulic Jar Lock
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.