TREA

Earle W. Stephenson

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  • Latrobe, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Grader blade with tiered inserts on leading edge
    • Patent number 4,770,253
    • Issue date Sep 13, 1988
    • Kennametal Inc.
    • Robert P. Hallissy
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Grader blade with casting/insert assembly on leading edge
    • Patent number 4,715,450
    • Issue date Dec 29, 1987
    • Kennametal Inc.
    • Robert P. Hallissy
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Furrowing tool
    • Patent number 4,360,068
    • Issue date Nov 23, 1982
    • Kennametal Inc.
    • Earle W. Stephenson
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Tool for earthworking machine
    • Patent number 4,326,592
    • Issue date Apr 27, 1982
    • Kennametal Inc.
    • Earle W. Stephenson
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Furrowing tool
    • Patent number 4,216,832
    • Issue date Aug 12, 1980
    • Kennametal Inc.
    • Earle W. Stephenson
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Earthworking blade device
    • Patent number 3,934,654
    • Issue date Jan 27, 1976
    • Kennametal Inc.
    • Earle W. Stephenson
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES