Patents by Inventor Suyun Liu

Suyun Liu 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).

  • Headphone
    Patent number: D876387
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: February 25, 2020
    Inventor: Suyun Liu
  • Headphone
    Patent number: D877116
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: March 3, 2020
    Inventor: Suyun Liu
  • Headphone
    Patent number: D880450
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: April 7, 2020
    Inventor: Suyun Liu
  • Headphone
    Patent number: D883950
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: May 12, 2020
    Inventor: Suyun Liu
  • Headphone
    Patent number: D890129
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: July 14, 2020
    Inventor: Suyun Liu