90078717
Jul 28, 2020
Chemicals for use in industry, namely, chemical additives for use in oil field technology and gas exploration; unprocessed polymers for use in oil-well servicing fluids, including drilling fluids; fluid loss chemical additives for drilling fluids used in hydrocarbon recovery; chemicals for use as cement additives; chemicals, namely, corrosion inhibitors for use in oil field technology and gas exploration
Chemicals