Patents by Inventor Qinping Ou

Qinping Ou 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).

  • Dumpling wrapping machine
    Patent number: D996922
    Type: Grant
    Filed: April 3, 2023
    Date of Patent: August 29, 2023
    Inventor: Qinping Ou