Patent Assignment and License Agreement

Recorded: 2008-03-14 Pages: 10

Assignors

SHELL OIL COMPANY

Executed: 2007-08-30

Executed: 2007-09-18

Assignee

AT-BALANCE AMERICAS LLC

11767 KATY FREEWAY, SUITE 1030, HOUSTON, TEXAS, 77079

Covered Property (1)

Choke for Controlling the Flow of Drilling Mud

Application: 11/769,540 →

Publication: US 2007/0240875

Related Assignments (1)

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