• Casing exit system (options)

    Patent №2800047
  • High pressure cell for synthesis of diamond polycrystalline cutters

    Patent №2791940
  • Circulating sub for operations with MWD

    Patent №215418
  • Circulating sub for operations with MWD

    Patent №215417
  • Casing shoe with rotating float plug

    Patent №212879
  • Tri-cone bit cone

    Patent №212334
  • Hydro emitter

    Patent №208539
  • Closed loop rotary-steerable system.

    Patent №2776547