Patents by Inventor Chenghu Du

Chenghu Du 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 straightener
    Patent number: D915671
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: April 6, 2021
    Assignee: SHENZHEN KAIMEISI TECHNOLOGY CO., LTD.
    Inventor: Chenghu Du
  • Hair curler
    Patent number: D977193
    Type: Grant
    Filed: September 15, 2022
    Date of Patent: January 31, 2023
    Assignee: DONGGUAN JIALI INTELLIGENT TECHNOLOGY CO., LTD.
    Inventor: Chenghu Du
  • Hair styler
    Patent number: D998890
    Type: Grant
    Filed: January 13, 2023
    Date of Patent: September 12, 2023
    Inventor: Chenghu Du
  • Hair styling comb
    Patent number: D1014845
    Type: Grant
    Filed: November 8, 2023
    Date of Patent: February 13, 2024
    Inventor: Chenghu Du