TREA

Calvin D. VanBuskirk

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  • Salmon Arm, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Reinforced arch with floating footer and method of constructing same
    • Patent number 9,243,380
    • Issue date Jan 26, 2016
    • Terratech Consulting Ltd.
    • Calvin D. VanBuskirk
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Reinforced soil arch
    • Patent number 8,215,869
    • Issue date Jul 10, 2012
    • Terratech Consulting Ltd.
    • Calvin D. VanBuskirk
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Culvert bundle for stream crossings and flow-through bridge abutments
    • Patent number 7,559,720
    • Issue date Jul 14, 2009
    • Terratech Consulting Ltd.
    • Ronald J. Neden
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Open bottom box culvert
    • Patent number 7,080,956
    • Issue date Jul 25, 2006
    • Terratech Consulting Ltd.
    • Ronald J. Neden
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Reinforced soil arch
    • Patent number 6,874,974
    • Issue date Apr 5, 2005
    • Terratech Consulting Ltd.
    • Calvin D. VanBuskirk
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

  • Information Patent Application

    REINFORCED ARCH WITH FLOATING FOOTER AND METHOD OF CONSTRUCTING SAME
    • Publication number 20140363236
    • Publication date Dec 11, 2014
    • Calvin D. VANBUSKIRK
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Reinforced Soil Arch
    • Publication number 20110020066
    • Publication date Jan 27, 2011
    • Terratech Consulting Ltd.
    • Calvin D. VanBuskirk
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    CULVERT BUNDLE FOR STREAM CROSSINGS AND FLOW-THROUGH BRIDGE ABUTMENTS
    • Publication number 20070253775
    • Publication date Nov 1, 2007
    • TERRATECH CONSULTING LTD.
    • Ronald J. Neden
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    OPEN BOTTOM BOX CULVERT
    • Publication number 20060115330
    • Publication date Jun 1, 2006
    • Terratech Consulting Ltd.
    • Ronald J. Neden
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    Reinforced soil arch
    • Publication number 20040179899
    • Publication date Sep 16, 2004
    • Calvin D. VanBuskirk
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES