TREA

David M. Barry

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  • Eden Prairie, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rail anchor
    • Patent number 9,605,385
    • Issue date Mar 28, 2017
    • Lewis Bolt & Nut Company
    • David M. Barry
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Bridge tie fastener system
    • Patent number 9,512,573
    • Issue date Dec 6, 2016
    • Lewis Bolt & Nut Company
    • Timothy John Austin
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Rail anchor
    • Patent number 9,255,362
    • Issue date Feb 9, 2016
    • Lewis Bolt & Nut Company
    • David M. Barry
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Articles and methods for installing hook bolts
    • Patent number 7,849,580
    • Issue date Dec 14, 2010
    • Lewis Bolt & Nut Company
    • David M. Barry
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Rail anchoring spike
    • Patent number 6,808,120
    • Issue date Oct 26, 2004
    • Lewis Bolt & Nut Company
    • David Oram
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Rail anchoring spike
    • Patent number 6,471,140
    • Issue date Oct 29, 2002
    • Lewis Bolt & Nut Company
    • David M. Barry
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

  • Information Patent Application

    RAIL ANCHORING SPIKE
    • Publication number 20210079598
    • Publication date Mar 18, 2021
    • Lewis Bolt & Nut Company
    • David M. Barry
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    RAIL ANCHOR
    • Publication number 20160130676
    • Publication date May 12, 2016
    • Lewis Bolt & Nut Company
    • David M. Barry
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    BRIDGE TIE FASTENER SYSTEM
    • Publication number 20150053783
    • Publication date Feb 26, 2015
    • Lewis Bolt & Nut Company
    • Timothy John Austin
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    RAIL ANCHOR
    • Publication number 20130206855
    • Publication date Aug 15, 2013
    • David M. Barry
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    RAIL ANCHOR
    • Publication number 20110290897
    • Publication date Dec 1, 2011
    • David M. Barry
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    ARTICLES AND METHODS FOR INSTALLING HOOK BOLTS
    • Publication number 20080169656
    • Publication date Jul 17, 2008
    • Lewis Bolt & Nut Company
    • David M. Barry
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Rail anchoring spike
    • Publication number 20050017086
    • Publication date Jan 27, 2005
    • David M. Barry
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    Rail anchoring spike
    • Publication number 20030111543
    • Publication date Jun 19, 2003
    • David Oram
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    Rail anchoring spike
    • Publication number 20020066796
    • Publication date Jun 6, 2002
    • David M. Barry
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES