Assignment of Assignor's Interest

Recorded: 2013-03-29 Pages: 4

Assignors

MAHMOOD, MAZHAR

Executed: 2013-03-11

LAFUENTE, MARTA

Executed: 2013-03-05

GRANGER, SCOTT

Executed: 2013-03-05

Assignee

VAM DRILLING USA, INC.

6300 NAVIGATION BOULEVARD, HOUSTON, TEXAS, 77011

Covered Property (1)

Shale Drill Pipe

Patent: 726,289 →

Application: 29/444,223 →

Related Assignments (1)

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