Patents by Inventor Youfei Chen

Youfei Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Hand-held lamp
    Patent number: D779092
    Type: Grant
    Filed: April 10, 2016
    Date of Patent: February 14, 2017
    Assignee: Ningbo Gemay Industry Co., Ltd.
    Inventors: Xuefeng Xu, Youfei Chen
  • Portable work light
    Patent number: D779094
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: February 14, 2017
    Assignee: Ningbo Gemay Industry Co., Ltd.
    Inventors: Xuefeng Xu, Youfei Chen
  • Work light
    Patent number: D779095
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: February 14, 2017
    Assignee: Ningbo Gemay Industry Co., Ltd.
    Inventors: Xuefeng Xu, Youfei Chen
  • Work light
    Patent number: D779096
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: February 14, 2017
    Assignee: Ningbo Gemay Industry Co., Ltd.
    Inventors: Xuefeng Xu, Youfei Chen
  • Portable work light
    Patent number: D779097
    Type: Grant
    Filed: April 10, 2016
    Date of Patent: February 14, 2017
    Assignee: Ningbo Gemay Industry Co., Ltd.
    Inventors: Xuefeng Xu, Youfei Chen
  • Floodlight
    Patent number: D803449
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: November 21, 2017
    Assignee: Ningbo Gemay Industry Co., Ltd.
    Inventors: Xuefeng Xu, Youfei Chen