Patents by Inventor JinZhong Yan

JinZhong Yan 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).

  • Electric breast pump
    Patent number: D967399
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: October 18, 2022
    Assignee: Qingyuan Wan Cheng Electronic Technology Co., Ltd.
    Inventor: JinZhong Yan
  • Electric breast pump
    Patent number: D975837
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: January 17, 2023
    Inventor: Jinzhong Yan
  • Electric breast pump
    Patent number: D1018830
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: March 19, 2024
    Inventor: Jinzhong Yan