TREA

Steven D. Shirk

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  • Altoona, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Insert spacer assembly
    • Patent number 5,310,015
    • Issue date May 10, 1994
    • Kennametal Inc.
    • Gerald L. Woods
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Insert spacer assembly
    • Patent number 5,226,489
    • Issue date Jul 13, 1993
    • Kennametal Inc.
    • Gerald L. Woods
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Insert and insert support bar
    • Patent number 5,184,925
    • Issue date Feb 9, 1993
    • Kennametal Inc.
    • Gerald L. Woods
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Trenching tool assembly with dual indexing capability
    • Patent number 5,007,685
    • Issue date Apr 16, 1991
    • Kennametal Inc.
    • Wayne H. Beach
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Cutting bit and block mount
    • Patent number 4,998,574
    • Issue date Mar 12, 1991
    • Kennametal Inc.
    • Wayne H. Beach
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Excavating tooth for an earth auger
    • Patent number 4,917,196
    • Issue date Apr 17, 1990
    • Kennametal Inc.
    • Stephen P. Stiffler
    • E21 - EARTH DRILLING MINING