TREA

Charles R. Kopplin

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  • Sheboygan, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Toilet bowl discharge valve assembly
    • Patent number 8,230,533
    • Issue date Jul 31, 2012
    • Kohler Co.
    • Thomas C. Jorsch
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Toilet discharge valve
    • Patent number 7,284,286
    • Issue date Oct 23, 2007
    • Kohler Co.
    • Charles R. Kopplin
    • E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents