Patents by Inventor San Il Choi

San Il Choi 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).

  • Digital audio player
    Patent number: D892761
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: August 11, 2020
    Assignee: IRIVER LIMITED
    Inventor: San Il Choi
  • Digital audio player
    Patent number: D901434
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: November 10, 2020
    Assignee: DREAMUS COMPANY
    Inventor: San Il Choi
  • Audio amplifier
    Patent number: D933037
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: October 12, 2021
    Assignee: DREAMUS COMPANY
    Inventors: Ji Sun Kim, San Il Choi