TREA

Yefan Weng

Follow

Person

  • Foshan, CN
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Ventilating fan
    • Patent number 10,451,076
    • Issue date Oct 22, 2019
    • Panasonic Ecology Systems Guangdong Co., LTD.
    • Yefan Weng
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Ventilation fan
    • Patent number 10,240,614
    • Issue date Mar 26, 2019
    • Panasonic Ecology Systems Guangdong Co., LTD.
    • Min Long
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Ventilating fan
    • Patent number 9,863,437
    • Issue date Jan 9, 2018
    • Panasonic Ecology Systems Guangdong Co., Ltd.
    • Yefan Weng
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Heating ventilator for bathroom
    • Patent number 9,541,297
    • Issue date Jan 10, 2017
    • Panasonic Ecology Systems Guangdong Co., LTD.
    • Yefan Weng
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Heating and ventilation fan for bathroom
    • Patent number 9,347,464
    • Issue date May 24, 2016
    • Panasonic Ecology Systems Guandong Co. Ltd.
    • Yefan Weng
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Heating and ventilating fan
    • Patent number 9,194,603
    • Issue date Nov 24, 2015
    • Panasonic Ecology Systems Guangdong Co., Ltd.
    • Hongjian Yuan
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Assembly of pipe unit and pipe hood for ventilating fan
    • Patent number 8,702,483
    • Issue date Apr 22, 2014
    • Panasonic Ecology Systems Guangdong Co., Ltd.
    • Yefan Weng
    • F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

  • Information Patent Application

    VENTILATION FAN
    • Publication number 20160195108
    • Publication date Jul 7, 2016
    • Panasonic Ecology Systems Guangdong Co., Ltd.
    • Min Long
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VENTILATING FAN
    • Publication number 20150086353
    • Publication date Mar 26, 2015
    • Panasonic Ecology Systems Guangdong Co., Ltd.
    • Yefan WENG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VENTILATING FAN
    • Publication number 20150086354
    • Publication date Mar 26, 2015
    • Panasonic Ecology Systems Guangdong Co., Ltd.
    • Yefan Weng
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HEATING AND VENTILATING FAN
    • Publication number 20140169771
    • Publication date Jun 19, 2014
    • PANASONIC CORPORATION
    • Hongjian Yuan
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HEATING VENTILATOR FOR BATHROOM
    • Publication number 20130143479
    • Publication date Jun 6, 2013
    • PANASONIC CORPORATION
    • Yefan Weng
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HEATING AND VENTILATION FAN FOR BATHROOM
    • Publication number 20130004299
    • Publication date Jan 3, 2013
    • PANASONIC CORPORATION
    • Yefan Weng
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ASSEMBLY OF PIPE UNIT AND PIPE HOOD FOR VENTILATING FAN
    • Publication number 20100081370
    • Publication date Apr 1, 2010
    • PANASONIC ECOLOGY SYSTEMS GUANGDONG CO., LTD.
    • Yefan Weng
    • F24 - HEATING RANGES VENTILATING