TREA

Ralph A. Polasky

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  • Ripon, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pour-through pitcher filter
    • Patent number 5,225,078
    • Issue date Jul 6, 1993
    • Ametek, Inc. Plymouth Products Division
    • Ralph A. Polasky
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Apparatus for removal of iron from drinking water
    • Patent number 5,180,491
    • Issue date Jan 19, 1993
    • Ametek, Inc.
    • Ralph A. Polasky
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Water purifying filter device
    • Patent number 5,061,367
    • Issue date Oct 29, 1991
    • Ametek, Inc.
    • Gary L. Hatch
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE