Patent Assignment
Reel/Frame 022201/0052
Assignment of Assignor's Interest
Recorded: 2009-02-04
Pages: 6
Assignors
CARBAUGH, WILLIAM L.
Executed: 2009-01-27
MEI, ERIC
Executed: 2009-01-27
CHILDERS, LEONARD G.
Executed: 2009-01-27
Assignee
HYDRIL USA MANUFACTURING LLC
3300 NORTH SAM HOUSTON PARKWAY EAST, HOUSTON, TEXAS, 77032
Covered Property
(1)
Bidirectional Ram Bop and Method
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.