Assignment of Assignor's Interest

Recorded: 2010-02-09 Pages: 6

Assignors

HALL, CHRISTOPHER A.

Executed: 2010-01-25

YADAV, SEEMANT

Executed: 2010-01-25

LANDTHRIP, JOHN G.

Executed: 2010-01-25

Assignee

HYDRIL USA MANUFACTURING LLC

3300 NORTH SAM HOUSTON PARKWAY E., HOUSTON, TEXAS, 77032-3411

Covered Property (1)

Shear Block and Blade Interface and Method

Patent: 8,439,327 →

Application: 12/643,308 →

Publication: US 2011/0147623

Related Assignments (1)

Other recorded transfers of the patent in this record — the chain of ownership.