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Roy Derrick Achilles

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  • Johannesburg, ZA
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    POLYCRYSTALLINE DIAMOND ABRASIVE ELEMENTS
    • Publication number 20110303467
    • Publication date Dec 15, 2011
    • Brett Lancaster
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    POLYCRYSTALLINE DIAMOND ABRASIVE ELEMENTS
    • Publication number 20110286810
    • Publication date Nov 24, 2011
    • Brett Lancaster
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    CUTTING TOOL INSERT AND DRILL BIT SO EQUIPPED
    • Publication number 20100236837
    • Publication date Sep 23, 2010
    • BAKER HUGHES INCORPORATED
    • Roy Derrick Achilles
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    ABRASIVE COMPACTS
    • Publication number 20100043302
    • Publication date Feb 25, 2010
    • Klaus Tank
    • B24 - GRINDING POLISHING
  • Information Patent Application

    Polycrystalline Diamond Abrasive Elements
    • Publication number 20080222966
    • Publication date Sep 18, 2008
    • ELEMENT SIX (PTY) LTD
    • Brett Lancaster
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    Polycrystalline diamond abrasive elements
    • Publication number 20070181348
    • Publication date Aug 9, 2007
    • Brett Lancaster
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    Cutting tool insert
    • Publication number 20070039762
    • Publication date Feb 22, 2007
    • Roy Derrick Achilles
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Secondary cutting element for drill bit
    • Publication number 20070017710
    • Publication date Jan 25, 2007
    • Roy Derrick Achilles
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Tool insert
    • Publication number 20060260850
    • Publication date Nov 23, 2006
    • Bronwyn Annette Roberts
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Tool insert
    • Publication number 20060144621
    • Publication date Jul 6, 2006
    • Klaus Tank
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Composite tool insert
    • Publication number 20060099895
    • Publication date May 11, 2006
    • Klaus Tank
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Polycrystalline diamond abrasive elements
    • Publication number 20050139397
    • Publication date Jun 30, 2005
    • Roy Derrick Achilles
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    Method of making a composite abrasive compact
    • Publication number 20040037948
    • Publication date Feb 26, 2004
    • Klaus Tank
    • B22 - CASTING POWDER METALLURGY