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Zhengnan ZENG

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  • Foshan, CN
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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

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...