Patents by Inventor Lanhui Hu

Lanhui Hu 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).

  • Slider and ladder assembly
    Patent number: D986441
    Type: Grant
    Filed: February 17, 2023
    Date of Patent: May 16, 2023
    Inventor: Lanhui Hu
  • Slider and ladder assembly
    Patent number: D986442
    Type: Grant
    Filed: February 23, 2023
    Date of Patent: May 16, 2023
    Inventor: Lanhui Hu