TREA

ILLINOIS DEPARTMENT OF TRANSPORTATION

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  • Springfield, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Auger welder station and method
    • Patent number 6,899,263
    • Issue date May 31, 2005
    • Illinois Department of Transportation
    • Michael Sean Tappan
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    BREAKAWAY COUPLINGS FOR TRANSPORTATION STRUCTURES
    • Publication number 20110107585
    • Publication date May 12, 2011
    • ILLINOIS DEPARTMENT OF TRANSPORTATION
    • Christopher Hahin
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    Auger welder station and method
    • Publication number 20040108360
    • Publication date Jun 10, 2004
    • Illinois Department of Transportation
    • Michael Sean Tappan
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR