Patent Assignment
Reel/Frame 022377/0392
Assignment of Assignor's Interest
Recorded: 2009-03-11
Pages: 2
Assignor
HYDRIL LLC
Executed: 2009-03-10
Assignee
HYDRIL USA MANUFACTURING LLC
3300 NORTH SAM HOUSTON PARKWAY EAST, HOUSTON, TEXAS, 77032
Covered Property
(1)
Distributed Databases for a Well Control Drilling System
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.