Security Agreement

Recorded: 2012-07-31 Pages: 8

Assignor

CENTRAL HYDRAULIC, INC.

Executed: 2012-07-27

Assignee

AMEGY BANK NATIONAL ASSOCIATION

4400 POST OAK PARKWAY, HOUSTON, TEXAS, 77027

Covered Property (1)

Valving System for a Downhole Hydraulically Actuated Pump

Patent: 6,948,917 →

Application: 10/385,328 →

Related Assignments (1)

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