TREA

Chapman P. Hancock

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  • Oklahoma City, OK, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Stacked-plate reamer
    • Patent number 10,538,969
    • Issue date Jan 21, 2020
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Stacked-plate reamer
    • Patent number 10,036,205
    • Issue date Jul 31, 2018
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    Stacked-Plate Reamer
    • Publication number 20180313159
    • Publication date Nov 1, 2018
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Stacked-Plate Reamer
    • Publication number 20160356091
    • Publication date Dec 8, 2016
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING