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John Joseph Warren

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  • Doncaster, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary cutting head with water supply
    • Patent number 6,840,585
    • Issue date Jan 11, 2005
    • Hydra Mining Tools International LTD
    • William Stephen Clapham
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Pick box for housing a mineral cutter pick
    • Patent number 6,536,847
    • Issue date Mar 25, 2003
    • Hydra Mining Tools International LTD
    • William Stephen Clapham
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Point attack tooling system for mineral winning
    • Patent number 6,099,081
    • Issue date Aug 8, 2000
    • Hydra Tools International Limited
    • John Joseph Warren
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Sleeve for tooling system for mineral winning
    • Patent number D420013
    • Issue date Feb 1, 2000
    • Hydra Tools International Limited
    • John Joseph Warren
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Sleeve for tooling system for mineral winning
    • Patent number D413126
    • Issue date Aug 24, 1999
    • Hydra Tools International Limited
    • John Joseph Warren
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Hydraulic circuit
    • Patent number 5,744,034
    • Issue date Apr 28, 1998
    • Hydra Tools International PLC
    • William Stephen Clapham
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents