Patents by Inventor Junfen Chen

Junfen 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).

  • Electronic piano
    Patent number: D940785
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: January 11, 2022
    Assignee: Guangzhou Rantion Technology Co., Ltd.
    Inventors: Joe Huang, Yaoxing Xu, Junfen Chen, Miao Deng
  • Electronic keyboard
    Patent number: D940786
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: January 11, 2022
    Assignee: Guangzhou Rantion Technology Co., Ltd
    Inventors: Joe Huang, Yaoxing Xu, Junfen Chen, Miao Deng