Chemical additives for oil well drilling fluids; Chemical additives for fracturing fluid for use in oil and gas wells; Chemical engine treatment preparations and additives for engine oils, gasoline and diesel fuels, transmission fluids and cooling systems

Active chemical ingredients for use in the manufacture of anti-cancer drugs; Chemical additives for asphalt; Chemical additives for drilling muds; Chemical additives for enhancing the performance of lubricating oils, greases and internal combustion engine fuels; Chemical additives for fracturing fluid for use in oil and gas wells; Chemical additives for fuel; Chemical additives for gasoline; Chemical additives for oil well drilling fluids; Chemical additives for use in the manufacture of phar...