TREA

Stephen P. Doan

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  • Oregon City, OR, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pin retainer for dragline pins
    • Patent number 9,163,378
    • Issue date Oct 20, 2015
    • Columbia Steel Casting Co., Inc.
    • Stephen P. Doan
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Dump block with improved assembly features
    • Patent number 8,112,912
    • Issue date Feb 14, 2012
    • Columbia Steel Casting Co., Inc.
    • Stephen P. Doan
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Coupling link
    • Patent number 7,155,895
    • Issue date Jan 2, 2007
    • Columbia Steel Casting Co., Inc.
    • Michael D. Moehnke
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Chain link with angularly disposed end portions
    • Patent number 6,871,486
    • Issue date Mar 29, 2005
    • Columbia Steel Casting Co., Inc.
    • Michael D. Moehnke
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Easy-out cable socket wedge and method for use thereof
    • Patent number 5,988,929
    • Issue date Nov 23, 1999
    • Columbia Steel Casting Co.
    • Stephen P. Doan
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

  • Information Patent Application

    PIN RETAINER FOR DRAGLINE PINS
    • Publication number 20130133175
    • Publication date May 30, 2013
    • Columbia Steel Casting Co., Inc.
    • Stephen P. Doan
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    ADJUSTABLE SOCKET FOR FERRULE ROPE
    • Publication number 20120102679
    • Publication date May 3, 2012
    • Columbia Steel Casting Co., Inc.
    • Stephen P. Doan
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    DUMP BLOCK WITH IMPROVED ASSEMBLY FEATURES
    • Publication number 20110067275
    • Publication date Mar 24, 2011
    • Columbia Steel Casting Co., Inc.
    • Stephen P. Doan
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Coupling link
    • Publication number 20060137322
    • Publication date Jun 29, 2006
    • Columbia Steel Casting Co., Inc.
    • Michael D. Moehnke
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Chain link with angularly disposed end portions
    • Publication number 20040139719
    • Publication date Jul 22, 2004
    • Columbia Steel Casting Co., Inc.
    • Michael D. Moehnke
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Chain link with angularly disposed end portions
    • Publication number 20030213226
    • Publication date Nov 20, 2003
    • Columbia Steel Casting Co., Inc.
    • Michael D. Moehnke
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING