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Mark F. Gravouia

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  • Lafayette, LA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tong gear shift system
    • Patent number 8,215,196
    • Issue date Jul 10, 2012
    • McCoy Corporation
    • David A. Buck
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ring gear supporting idler gear
    • Patent number 6,446,524
    • Issue date Sep 10, 2002
    • Mark F. Gravouia
    • E21 - EARTH DRILLING MINING