Patent Assignment
Reel/Frame 031082/0217
Assignment of Assignor's Interest
Recorded: 2013-08-26
Pages: 6
Assignee
HYDRIL USA DISTRIBUTION, LLC
4424 WEST SAM HOUSTON PARKWAY NORTH, SUITE 100, HOUSTON, TEXAS, 77041
Covered Property
(1)
Drill String Valve and Method
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.