Patents by Inventor Haizhu Zheng

Haizhu Zheng 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).

  • Dustpan
    Patent number: D1001406
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: October 10, 2023
    Inventor: Haizhu Zheng
  • Rake
    Patent number: D1009582
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: January 2, 2024
    Inventor: Haizhu Zheng