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David John Hall

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  • Queensland, AU
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of moving material
    • Patent number 10,689,981
    • Issue date Jun 23, 2020
    • OPTI-MINEZ PTY LTD
    • David John Hall
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Method of strip mining
    • Patent number 10,648,331
    • Issue date May 12, 2020
    • OPTI-MINEZ PTY LTD
    • David Hall
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

  • Information Patent Application

    METHOD OF STRIP MINING
    • Publication number 20190203596
    • Publication date Jul 4, 2019
    • OPTI-MINEZ PTY LTD
    • David Hall
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    METHOD OF MOVING MATERIAL
    • Publication number 20170284200
    • Publication date Oct 5, 2017
    • OPTI-MINEZ PTY LTD
    • David John Hall
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING