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Zewei Rao

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  • Jianrong, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ventilating fan
    • Patent number 10,047,756
    • Issue date Aug 14, 2018
    • Panasonic Ecology Systems Guangdong Co., Ltd.
    • Zhenjian Yang
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Structure for reducing noise of ventilating fan
    • Patent number 9,441,642
    • Issue date Sep 13, 2016
    • Panasonic Ecology Systems Guangdong Co., Ltd.
    • Zewei Rao
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Ventilator
    • Patent number 8,210,806
    • Issue date Jul 3, 2012
    • Panasonic Corporation
    • Jingtao Yang
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...

Patents Applicationslast 30 patents

  • Information Patent Application

    STRUCTURE FOR REDUCING NOISE OF VENTILATING FAN
    • Publication number 20150337862
    • Publication date Nov 26, 2015
    • PANASONIC CORPORATION
    • Zewei Rao
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VENTILATING FAN
    • Publication number 20130072105
    • Publication date Mar 21, 2013
    • PANASONIC CORPORATION
    • Zhenjian Yang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...