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CHUNFENG YUAN

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  • BEIJING, CN
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    ROTATION STRUCTURE AND ELECTRONIC DEVICE
    • Publication number 20240019910
    • Publication date Jan 18, 2024
    • Lenovo (Beijing) Limited
    • Chunfeng YUAN
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    CONNECTION DEVICE AND ELECTRONIC DEVICE
    • Publication number 20230094783
    • Publication date Mar 30, 2023
    • Lenovo (Beijing) Limited
    • Chunfeng YUAN
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    ELECTRONIC DEVICE
    • Publication number 20200103945
    • Publication date Apr 2, 2020
    • LENOVO (BEIJING) CO., LTD.
    • Chunfeng YUAN
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    ELECTRONIC DEVICE
    • Publication number 20180136698
    • Publication date May 17, 2018
    • LENOVO (BEIJING) CO., LTD.
    • Chunfeng YUAN
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    CONNECTING APPARATUS, ROTATING SHAFT AND ELECTRONIC DEVICE
    • Publication number 20170139445
    • Publication date May 18, 2017
    • Lenovo (Beijing) Limited
    • CHUNFENG YUAN
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Connector and an Electronic Device Having the Same
    • Publication number 20160215540
    • Publication date Jul 28, 2016
    • LENOVO (BEIJING) CO., LTD.
    • Chunfeng Yuan
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    Centrifugal Fan and an Electronic Device Having the Same
    • Publication number 20160209893
    • Publication date Jul 21, 2016
    • LENOVO (BEIJING) CO., LTD.
    • Chunfeng Yuan
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Heat Dissipating Device And Electronic Apparatus
    • Publication number 20150245536
    • Publication date Aug 27, 2015
    • LENOVO (BEIJING) CO., LTD.
    • Jinyu Li
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    ELECTRONIC DEVICE
    • Publication number 20140085795
    • Publication date Mar 27, 2014
    • LENOVO (BEIJING) CO., LTD.
    • Xiaosong Xia
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    ELECTRONIC DEVICE AND DOCK
    • Publication number 20130321994
    • Publication date Dec 5, 2013
    • Chunfeng Yuan
    • G06 - COMPUTING CALCULATING COUNTING