Patents by Inventor Fenfen Shi

Fenfen Shi 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).

  • Toothbrush head
    Patent number: D947539
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: April 5, 2022
    Assignee: Thumbs Up Innovations Technology Co., Ltd.
    Inventors: Yuqiang Zhao, Yubin Li, Xiu Zou, Zhidong Wang, Rongjin Zheng, Jiacheng Huang, Fenfen Shi
  • Curling iron
    Patent number: D966607
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: October 11, 2022
    Assignee: Thumbs Up Innovations Technology Co., Ltd.
    Inventors: Li Chen, Yubin Li, Yuqiang Zhao, Xiu Zou, Zhidong Wang, Zhihui Yang, Rongjin Zheng, Jiacheng Huang, Fenfen Shi