Patents by Inventor Ruijuan Sun

Ruijuan Sun 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).

  • Wireless mobile printer
    Patent number: D893593
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: August 18, 2020
    Assignee: ZHUHAI QUYIN TECHNOLOGY CO., LTD.
    Inventor: Ruijuan Sun
  • Wireless mobile printer
    Patent number: D893594
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: August 18, 2020
    Assignee: ZHUHAI QUYIN TECHNOLOGY CO., LTD.
    Inventor: Ruijuan Sun
  • Wireless mobile printer
    Patent number: D893595
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: August 18, 2020
    Assignee: ZHUHAI QUYIN TECHNOLOGY CO., LTD.
    Inventor: Ruijuan Sun
  • Label printer
    Patent number: D900214
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: October 27, 2020
    Assignee: ZHUHAI QUYIN TECHNOLOGY CO., LTD.
    Inventor: Ruijuan Sun
  • Label printer
    Patent number: D931364
    Type: Grant
    Filed: November 26, 2020
    Date of Patent: September 21, 2021
    Assignee: ZHUHAI HUAKE ELECTRONIC TECHNOLOGY CO., LTD.
    Inventor: Ruijuan Sun
  • Wireless mobile printer
    Patent number: D944314
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: February 22, 2022
    Assignee: ZHUHAI HUAKE ELECTRONIC TECHNOLOGY CO., LTD.
    Inventor: Ruijuan Sun