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Joung Whi Dong

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  • Seoul, KR
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Patents Grantslast 30 patents

  • Information Patent Grant

    Filter assembly
    • Patent number 10,173,157
    • Issue date Jan 8, 2019
    • MICROFILTER CO., LTD.
    • Joung Whi Dong
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Parallel flow channel type filter cartridge
    • Patent number 10,016,703
    • Issue date Jul 10, 2018
    • MICROFILTER CO., LTD.
    • Joung Whi Dong
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Water purifying filter
    • Patent number D776237
    • Issue date Jan 10, 2017
    • MICROFILTER CO., LTD.
    • Joung Whi Dong
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Water purifying filter
    • Patent number D768813
    • Issue date Oct 11, 2016
    • MICROFILTER CO., LTD.
    • Joung Whi Dong
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Water purifying filter
    • Patent number D768814
    • Issue date Oct 11, 2016
    • MICROFILTER CO., LTD.
    • Joung Whi Dong
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Thermoelectric cooling device for purified water tank
    • Patent number 5,675,973
    • Issue date Oct 14, 1997
    • Chung Ho NAIS Incorporation
    • Joung Whi Dong
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Water cooling device for water purifiers
    • Patent number 5,609,033
    • Issue date Mar 11, 1997
    • Chung Ho NAIS Incorporation
    • Joung W. Dong
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Heat dissipating device for water purifier's thermoelement
    • Patent number 5,503,739
    • Issue date Apr 2, 1996
    • Chung Ho NAIS Incorporation
    • Joung W. Dong
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    SERIAL FLOW CHANNEL TYPE FILTER CARTRIDGE
    • Publication number 20170028320
    • Publication date Feb 2, 2017
    • MICROFILTER CO., LTD.
    • Joung Whi Dong
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    PARALLEL FLOW CHANNEL TYPE FILTER CARTRIDGE
    • Publication number 20170028319
    • Publication date Feb 2, 2017
    • MICROFILTER CO., LTD.
    • Joung Whi Dong
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    FILTER ASSEMBLY
    • Publication number 20160271535
    • Publication date Sep 22, 2016
    • Microfilter Co., Ltd.
    • Joung Whi Dong
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL