Assignment of Assignor's Interest

Recorded: 2011-02-16 Received: 2011-02-16 Pages: 8

Assignor

Executed: 2010-03-09

Assignee

BURINTEKH USA LLC

7601 WILL ROGERS BOULEVARD, FORT WORTH, TX, 76140, UNITED STATES

Covered Properties (11)

Rotating Laser Transmitter

PCT: PCTUS2008075105 ↗

Pressure Compensator for Drill Bit

PCT: PCTUS2007078432 ↗

Rotary seal arrangement for drill bits

Application: 60/834,864 →

Directable Nozzle for Rock Drilling Bits

PCT: PCTUS2006018677 ↗

Modular Kerfing Drill Bit

PCT: PCTUS2006007564 ↗

Directable nozzle for rock drilling bits

Application: 11/141,222 →

Modular kerfing drill bit

Application: 11/073,051 →

Rock Bit with Channel Structure for Retaining Cutter Segments

Application: 10/419,589 →

Adjustable Earth Boring Device

Application: 10/209,832 →

Roller Cone Bi-Center Bit

Application: 10/210,806 →

Sharp Gage for Mill Tooth Rock Bits

Application: 09/773,884 →