Patents by Inventor Chengjiang Gao

Chengjiang Gao 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 foot callus remover
    Patent number: D1000708
    Type: Grant
    Filed: March 13, 2023
    Date of Patent: October 3, 2023
    Inventor: Chengjiang Gao
  • Hair trimmer
    Patent number: D1001374
    Type: Grant
    Filed: March 13, 2023
    Date of Patent: October 10, 2023
    Inventor: Chengjiang Gao
  • Electric shaver
    Patent number: D1002943
    Type: Grant
    Filed: March 13, 2023
    Date of Patent: October 24, 2023
    Inventor: Chengjiang Gao