Patents by Inventor Hanwu Ma

Hanwu Ma 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).

  • Cigar box
    Patent number: D963240
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: September 6, 2022
    Inventor: Hanwu Ma
  • Cigar box
    Patent number: D963241
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: September 6, 2022
    Inventor: Hanwu Ma
  • Cigar knife
    Patent number: D992811
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: July 18, 2023
    Inventor: Hanwu Ma