TREA

Paul H. Markelz

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  • West Chicago, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bridge construction method
    • Patent number 6,795,992
    • Issue date Sep 28, 2004
    • Paul H. Markelz
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Mechanical bridge assembly and method
    • Patent number 6,568,019
    • Issue date May 27, 2003
    • Paul H. Markelz
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Bridge erection system
    • Patent number 5,947,308
    • Issue date Sep 7, 1999
    • Paul H. Markelz
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Bridge erection system
    • Patent number 5,921,415
    • Issue date Jul 13, 1999
    • Paul H. Markelz
    • B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents