TREA

Duane D. Nowlin

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  • New Brighton, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Water softener with resin beads of different mesh sizes
    • Patent number 5,464,532
    • Issue date Nov 7, 1995
    • Ecowater Systems, Inc.
    • Duane Nowlin
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Method for regeneration of a water softener
    • Patent number 4,722,797
    • Issue date Feb 2, 1988
    • Ecodyne Corporation
    • Gary W. Gauer
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Chemical dispenser
    • Patent number 4,347,224
    • Issue date Aug 31, 1982
    • Ecodyne Corporation
    • Adolf F. Beckert
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Method and apparatus for treating water
    • Patent number 4,332,685
    • Issue date Jun 1, 1982
    • Ecodyne Corporation
    • Duane D. Nowlin
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE