TREA

Robert L. Frost

Follow

Person

  • Sherman, TX, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Drill head borer
    • Patent number 10,077,607
    • Issue date Sep 18, 2018
    • Belltec Industries, Inc.
    • Robert L. Frost
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Digging tooth
    • Patent number 5,143,163
    • Issue date Sep 1, 1992
    • Kennametal Inc.
    • Stephen P. Stiffler
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Digging tooth
    • Patent number 5,067,262
    • Issue date Nov 26, 1991
    • Kennametal Inc.
    • Stephen P. Stiffler
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

  • Information Patent Application

    DRILL HEAD BORER
    • Publication number 20160230469
    • Publication date Aug 11, 2016
    • BELLTEC INDUSTRIES, INC.
    • Robert L. Frost
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    FLUTED WING AUGER
    • Publication number 20160032656
    • Publication date Feb 4, 2016
    • BELLTEC INDUSTRIES, INC.
    • Robert L. Frost
    • E21 - EARTH DRILLING MINING