TREA

Douglas C. Madsen

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  • Shell Rock, IA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Plastic barricade assembly
    • Patent number 6,561,120
    • Issue date May 13, 2003
    • Plasticide Products Corporation
    • Geoffrey M. Glass
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Plastic barricade assembly
    • Patent number 6,101,967
    • Issue date Aug 15, 2000
    • Plasticade Products Corporation
    • Geoffrey M. Glass
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Traffic barricade and flasher light assembly with combination flash...
    • Patent number 5,570,972
    • Issue date Nov 5, 1996
    • Plasticade Products Corporation
    • Geoffrey M. Glass
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES