Units supplying highly filtered air to a room or to a limited area within a room

Patents Grantslast 30 patents

  • Information Patent Grant

    Air cleaner

    • Patent number 10,323,855
    • Issue date Jun 18, 2019
    • LG Electronics Inc.
    • Soonki Jung
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Atmosphere conditioning device

    • Patent number 10,124,140
    • Issue date Nov 13, 2018
    • Ashoke Seth
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Air purifier using ultraviolet rays

    • Patent number 10,039,852
    • Issue date Aug 7, 2018
    • SEOUL VIOSYS CO., LTD.
    • Jae Seon Yi
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Air passage device

    • Patent number 9,889,397
    • Issue date Feb 13, 2018
    • Pfannenberg GmbH
    • Andreas Pfannenberg
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Local cleaned air supply device

    • Patent number 9,797,609
    • Issue date Oct 24, 2017
    • NIKKA MICRON CO., LTD.
    • Shigeo Sekiguchi
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Filter mounts for a portable fan and methods for mounting a filter...

    • Patent number 9,784,287
    • Issue date Oct 10, 2017
    • Zipwall, LLC
    • Jeffrey P. Whittemore
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Air purification system

    • Patent number 9,737,841
    • Issue date Aug 22, 2017
    • Sui Chun Law
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Dropped ceiling fan

    • Patent number 9,719,519
    • Issue date Aug 1, 2017
    • Thomas F. Noonan
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    In line air filtration and purification apparatus

    • Patent number 9,689,580
    • Issue date Jun 27, 2017
    • Airistar Technologies
    • Paul C. Burke
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Air blowing devices aligned in width direction

    • Patent number 9,644,855
    • Issue date May 9, 2017
    • Koken Ltd.
    • Kazuma Fukiura
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Method of filtering air

    • Patent number 9,573,088
    • Issue date Feb 21, 2017
    • The Procter & Gamble Company
    • Dana Paul Gruenbacher
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter mounts for a portable fan and methods for mounting a filter...

    • Patent number 9,458,862
    • Issue date Oct 4, 2016
    • Zipwall, LLC.
    • Jeffrey P. Whittemore
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Cooling fan having detachable heater

    • Patent number 9,447,981
    • Issue date Sep 20, 2016
    • Perfect Union Co., Ltd.
    • Ching Chan
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Purified air discharge device

    • Patent number 9,410,710
    • Issue date Aug 9, 2016
    • Koken Ltd.
    • Taketo Suzuki
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Air purification system

    • Patent number 9,375,670
    • Issue date Jun 28, 2016
    • Akos Advanced Technology Ltd.
    • Yiu Wai Chan
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Air adjuster

    • Patent number 9,366,450
    • Issue date Jun 14, 2016
    • Sharp Kabushiki Kaisha
    • Hiroyasu Yamashita
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Air filtration assembly

    • Patent number 9,162,173
    • Issue date Oct 20, 2015
    • Kent Martinez
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Fine particle diffusion device

    • Patent number 9,061,084
    • Issue date Jun 23, 2015
    • Sharp Kabushiki Kaisha
    • Masaki Ohtsuka
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Air passage device

    • Patent number 9,039,500
    • Issue date May 26, 2015
    • Pfannenberg GmbH
    • Andreas Pfannenberg
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Environmental improvement system

    • Patent number 8,894,478
    • Issue date Nov 25, 2014
    • Woodrow Stillwagon
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Filter mounts for a portable fan and methods for mounting a filter...

    • Patent number 8,801,824
    • Issue date Aug 12, 2014
    • Zipwall LLC
    • Jeffrey P. Whittemore
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Air purification system

    • Patent number 8,778,272
    • Issue date Jul 15, 2014
    • Akos Advanced Technology Ltd.
    • Yiu Wai Chan
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Systems and methods for monitoring, inferring state of health, and...

    • Patent number 8,725,455
    • Issue date May 13, 2014
    • Klatu Networks
    • Richard Kriss
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Electric device with air cleaning function

    • Patent number 8,702,850
    • Issue date Apr 22, 2014
    • Sanyo Electric Co., Ltd.
    • Daisuke Suzuki
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Method for purifying inside of room

    • Patent number 8,685,328
    • Issue date Apr 1, 2014
    • Sharp Kabushiki Kaisha
    • Hiroaki Okano
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Filter mounts for a portable fan and methods for mounting a filter...

    • Patent number 8,591,619
    • Issue date Nov 26, 2013
    • Zipwall LLC
    • Jeffrey P. Whittemore
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Air filtration and purification system

    • Patent number 8,562,913
    • Issue date Oct 22, 2013
    • Acepower Logistics, Inc.
    • Bruce R. Searle
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Air cleaner

    • Patent number 8,551,234
    • Issue date Oct 8, 2013
    • Woongjin Coway Co., Ltd.
    • Seung Ki Kim
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Air purifier having dehumidification function

    • Patent number 8,500,882
    • Issue date Aug 6, 2013
    • Woongjin Coway Co., Ltd.
    • Seong-Jin Yun
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Intelligent energy saving ventilation control system

    • Patent number 8,496,514
    • Issue date Jul 30, 2013
    • Konkuk University Industrial Cooperation Corp.
    • Jo Chun Kim
    • F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents