BLACKSTREAM
Mark Identification

BLACKSTREAM

Serial Number

86004702

Filing Date

Jul 8, 2013

Registration Date

Oct 28, 2014

Trademark by

NATIONAL OILWELL VARCO L.P.

Active Trademark

Classification Information

Power operated tools for the exploration and production of oil and gas and used in connection with drilling apparatus, namely, tools for measuring weight on bit (WOB), torque on bit (TOB), weight transfer, torque loading, multi-axis vibration, shock impact, damage determination, annular pressure, temperature, stick-slip, whirl, and torsional event detection and characterization

Machinery

Oil and gas well downhole measurement equipment

Electrical and Scientific Apparatus