Assignment of Assignor's Interest

Recorded: 2013-02-21 Received: 2013-02-21 Pages: 4

Assignors

RITTER, DAVID R.

Executed: 2012-12-24

ARGENT, JASON DOMINIC

Executed: 2012-12-28

Assignee

LONGYEAR TM, INC.

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

Covered Property (1)

Progressive Dual-Shaft Drill Head and Systems and Methods Thereof

Application: 13/730,365 →