Patents by Inventor Sifang Lai

Sifang Lai 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 clipper
    Patent number: D981042
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: March 14, 2023
    Inventor: Sifang Lai
  • Shaver
    Patent number: D984052
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: April 18, 2023
    Inventor: Sifang Lai