TREA

John Wenzlaff

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  • Wonder Lake, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Modular shutter
    • Patent number 5,996,298
    • Issue date Dec 7, 1999
    • Shutters, Inc.
    • John C. Wenzlaff
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Fastenerless modular shutter with adjustable panel support member
    • Patent number 5,826,393
    • Issue date Oct 27, 1998
    • Selfix, Inc.
    • John C. Wenzlaff
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Modular shutter and retention assembly
    • Patent number 5,524,407
    • Issue date Jun 11, 1996
    • Selfix, Inc.
    • Michael J. Ricard
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS