Patents by Inventor Yixun Ma

Yixun 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).

  • Tablet case
    Patent number: D885403
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: May 26, 2020
    Inventor: Yixun Ma
  • Tablet keyboard case
    Patent number: D923629
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: June 29, 2021
    Inventor: Yixun Ma