Assignment of Assignor's Interest

Recorded: 2011-08-25 Received: 2011-08-25 Pages: 4

Assignor

Executed: 2011-08-22

Assignee

LONGYEAR TM, INC.

10808 SOUTH RIVER FRONT PARKWAY, SUITE 600, SOUTH JORDAN, UT, 84095, UNITED STATES

Covered Properties (3)

Drill String Chuck

Application: 10/066,237 →

Up-Hole Overshot and Safety Drilling Apparatus

Application: 09/845,060 →

Up-Hole Pump-in Core Barrel Apparatus

Application: 09/779,258 →