Patents by Inventor Chengjiang Xia

Chengjiang Xia 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).

  • Hair curler
    Patent number: D948787
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: April 12, 2022
    Inventor: Chengjiang Xia
  • Hair curling iron
    Patent number: D975354
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: January 10, 2023
    Inventor: Chengjiang Xia
  • Hair curler
    Patent number: D978425
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: February 14, 2023
    Assignee: SHENZHEN SANWIN TECHNOLOGY CO., LTD
    Inventors: Wansong Ma, Chengjiang Xia
  • Hot air brush
    Patent number: D1020086
    Type: Grant
    Filed: October 27, 2023
    Date of Patent: March 26, 2024
    Inventor: Chengjiang Xia