Patent Assignment
Reel/Frame 022376/0923
Assignment of Assignor's Interest
Recorded: 2009-03-11
Pages: 6
Assignors
CARBAUGH, WILLIAM L.
Executed: 2009-03-09
CHILDERS, LEONARD
Executed: 2009-03-09
MEI, ERIC
Executed: 2009-03-10
Assignee
HYDRIL USA MANUFACTURING LLC
3300 NORTH SAM HOUSTON PARKWAY EAST, HOUSTON, TEXAS, 77032
Covered Property
(1)
Deformation Resistant Opening Chamber Head and Method
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.