Patents by Inventor Changjiang Ding

Changjiang Ding 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).

  • Coffee grinder
    Patent number: D947593
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: April 5, 2022
    Inventor: Changjiang Ding
  • Combined electric pepper mill and USB
    Patent number: D985290
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: May 9, 2023
    Assignee: Yiwu Siwei Technology Co., Ltd.
    Inventor: Changjiang Ding
  • USB electric coffee grinder
    Patent number: D1003103
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: October 31, 2023
    Assignee: Yiwu Siwei Technology Co., Ltd.
    Inventor: Changjiang Ding
  • USB electric coffee grinder
    Patent number: D1003653
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: November 7, 2023
    Assignee: Yiwu Siwei Technology Co., Ltd.
    Inventor: Changjiang Ding
  • USB electric coffee grinder
    Patent number: D1003654
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: November 7, 2023
    Assignee: Yiwu Siwei Technology Co., Ltd.
    Inventor: Changjiang Ding
  • Manual coffee grinder
    Patent number: D1039903
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: August 27, 2024
    Assignee: Yiwu Siwei Technology Co., Ltd.
    Inventor: Changjiang Ding
  • Electric coffee grinder
    Patent number: D1062361
    Type: Grant
    Filed: April 12, 2024
    Date of Patent: February 18, 2025
    Assignee: Zhejiang Siwei Electric Co., Ltd.
    Inventor: Changjiang Ding