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Joseph G. Greenlee

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  • Perry, OK, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Virtual brake system
    • Patent number 12,116,855
    • Issue date Oct 15, 2024
    • The Charles Machine Works, Inc.
    • Joseph G. Greenlee
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method to prevent dual rod drill string drag
    • Patent number 11,885,223
    • Issue date Jan 30, 2024
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Dual-member pipe assembly
    • Patent number 11,828,176
    • Issue date Nov 28, 2023
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Virtual brake system
    • Patent number 11,686,180
    • Issue date Jun 27, 2023
    • The Charles Machine Works, Inc.
    • Joseph G. Greenlee
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Dual pipe drill head quick interchange joint
    • Patent number 11,578,540
    • Issue date Feb 14, 2023
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Dual pipe drill head quick interchange joint
    • Patent number 11,208,851
    • Issue date Dec 28, 2021
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Virtual brake system
    • Patent number 11,118,430
    • Issue date Sep 14, 2021
    • The Charles Machine Works, Inc.
    • Joseph G. Greenlee
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Dual-member pipe assembly
    • Patent number 11,002,076
    • Issue date May 11, 2021
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Virtual brake system
    • Patent number 10,724,347
    • Issue date Jul 28, 2020
    • The Charles Machine Works, Inc.
    • Joseph G. Greenlee
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Dual-member pipe assembly
    • Patent number 10,260,287
    • Issue date Apr 16, 2019
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    VIRTUAL BRAKE SYSTEM
    • Publication number 20240344397
    • Publication date Oct 17, 2024
    • The Charles Machine Works, Inc.
    • Joseph G. Greenlee
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    VIRTUAL BRAKE SYSTEM
    • Publication number 20230332487
    • Publication date Oct 19, 2023
    • The Charles Machine Works, Inc.
    • Joseph G. Greenlee
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DUAL PIPE DRILL HEAD QUICK INTERCHANGE JOINT
    • Publication number 20230193701
    • Publication date Jun 22, 2023
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DUAL PIPE DRILL HEAD QUICK INTERCHANGE JOINT
    • Publication number 20220120145
    • Publication date Apr 21, 2022
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Virtual Brake System
    • Publication number 20210404293
    • Publication date Dec 30, 2021
    • The Charles Machine Works, Inc.
    • Joseph G. Greenlee
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Dual-Member Pipe Assembly
    • Publication number 20210262291
    • Publication date Aug 26, 2021
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Method To Prevent Dual Rod Drill String Drag
    • Publication number 20210115777
    • Publication date Apr 22, 2021
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Virtual Brake System
    • Publication number 20200347701
    • Publication date Nov 5, 2020
    • The Charles Machine Works, Inc.
    • Joseph G. Greenlee
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Dual Pipe Drill Head Quick Interchange Joint
    • Publication number 20200040668
    • Publication date Feb 6, 2020
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Dual-Member Pipe Assembly
    • Publication number 20190226283
    • Publication date Jul 25, 2019
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Virtual Brake System
    • Publication number 20180171718
    • Publication date Jun 21, 2018
    • The Charles Machine Works, Inc.
    • Joseph G. Greenlee
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Dual-Member Pipe Assembly
    • Publication number 20160245025
    • Publication date Aug 25, 2016
    • The Charles Machine Works, Inc.
    • Greg L. Slaughter
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Earth saw
    • Publication number 20090007460
    • Publication date Jan 8, 2009
    • Joseph G. Greenlee
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING