TREA

Richard Williams

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  • Toronto, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Nozzle for low pressure flash tanks for ore slurry
    • Patent number 6,482,250
    • Issue date Nov 19, 2002
    • Barrick Gold Corporation
    • Richard Williams
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Nozzle for low pressure flash tanks for ore slurry
    • Patent number 6,110,255
    • Issue date Aug 29, 2000
    • Barrick Gold Corporation
    • Richard Williams
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Acid resistant cement composition
    • Patent number 5,989,330
    • Issue date Nov 23, 1999
    • Barrick Gold Corporation
    • Charles Semler
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES