Patent Assignment
Reel/Frame 023913/0442
Assignment of Assignor's Interest
Recorded: 2010-02-09
Pages: 4
Assignee
HYDRIL USA MANUFACTURING LLC
3300 NORTH SAM HOUSTON PARKWAY E., HOUSTON, TEXAS, 77032-3411
Covered Property
(1)
Lifting Device and Method for Lifting a Bonnet
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.