Regeneration of the filter material in the filter

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  • CPC
  • B01D23/24
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method and device for water priming microporous-carbon water filter...

    • Patent number 11,731,082
    • Issue date Aug 22, 2023
    • Liagic LLC
    • John Davis Whitaker
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Device and method for water priming microporous-carbon water filter...

    • Patent number 11,110,397
    • Issue date Sep 7, 2021
    • Pure Berkey, LLC
    • John Davis Whitaker
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Apparatus for removing impurities from water or wastewater

    • Patent number 10,376,817
    • Issue date Aug 13, 2019
    • Roberts Marketing DE, Inc.
    • R. Lee Roberts
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Underdrain filter block

    • Patent number 10,052,572
    • Issue date Aug 21, 2018
    • Xylem Water Solutions Zelienople LLC
    • Dean T. Berkebile
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Apparatus for removing impurities from water or wastewater and a me...

    • Patent number 9,731,228
    • Issue date Aug 15, 2017
    • Roberts Marketing DE, Inc.
    • R. Lee Roberts
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Method for washing a filter for filtering water or wastewater

    • Patent number 9,468,869
    • Issue date Oct 18, 2016
    • Roberts Marketing DE, Inc.
    • R. Lee Roberts
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Water purification device

    • Patent number 9,352,252
    • Issue date May 31, 2016
    • LifeStraw SA
    • Mikkel Vestergaard Frandsen
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Method for washing a filter having at least two layers of filtering...

    • Patent number 9,295,929
    • Issue date Mar 29, 2016
    • Degremont
    • Gerard Flores
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter cleaning method

    • Patent number 3,932,278
    • Issue date Jan 13, 1976
    • Sterling Drug Inc.
    • John A. Meidl
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    3616924

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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    3405872

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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    3216575

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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    3078188

    • Patent number 3,078,188
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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    2935195

    • Patent number 2,935,195
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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    1694467

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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    1640249

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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    1433357

    • Patent number 1,433,357
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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    1189521

    • Patent number 1,189,521
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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    1114763

    • Patent number 1,114,763
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    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents