TREA

Robert W. Balfanz

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  • Racine, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Duckbilled check valves and methods of making and using same
    • Patent number 6,053,194
    • Issue date Apr 25, 2000
    • S. C. Johnson & Son, Inc.
    • Cory J. Nelson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Overcap for aerosol container
    • Patent number 4,133,448
    • Issue date Jan 9, 1979
    • S. C. Johnson & Son, Inc.
    • Robert W. Balfanz
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL