TREA

John S. Kreitzberg

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  • Portland, OR, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Wear assembly for excavating equipment
    • Patent number 8,578,637
    • Issue date Nov 12, 2013
    • ESCO Corporation
    • Charles G Ollinger
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Wear assembly for excavating equipment
    • Patent number 8,061,064
    • Issue date Nov 22, 2011
    • ESCO Corporation
    • Charles G. Ollinger, IV
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Locking pin for excavating equipment
    • Patent number 6,030,143
    • Issue date Feb 29, 2000
    • ESCO Corporation
    • John S. Kreitzberg
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Dump block
    • Patent number 5,970,636
    • Issue date Oct 26, 1999
    • ESCO Corporation
    • Terry L. Briscoe
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Mining tooth point
    • Patent number 4,903,420
    • Issue date Feb 27, 1990
    • ESCO Corporation
    • John S. Kreitzberg
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Excavating shovel
    • Patent number 4,633,601
    • Issue date Jan 6, 1987
    • ESCO Corporation
    • Robert S. Fleck
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Wear Assembly For Excavating Equipment
    • Publication number 20120023788
    • Publication date Feb 2, 2012
    • EXCO Corporation
    • Charles G. Ollinger, IV
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    WEAR ASSEMBLY FOR EXCAVATING EQUIPMENT
    • Publication number 20110232139
    • Publication date Sep 29, 2011
    • Esco Corporation
    • Charles G. Ollinger, IV
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Wear Assembly For Excavating Equipment
    • Publication number 20110099861
    • Publication date May 5, 2011
    • Esco Corporation
    • Charles G. Ollinger, IV
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Wear Assembly For Excavating Equipment
    • Publication number 20090277050
    • Publication date Nov 12, 2009
    • Esco Corporation
    • Charles G. Ollinger, IV
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING