Patents by Inventor Gyoung Cheol Choi

Gyoung Cheol 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).

  • Voice recognition speaker
    Patent number: D797073
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: September 12, 2017
    Assignee: SK Telecom Co., Ltd.
    Inventors: Gi Bum Yoon, Yoon Hui Lee, Jung Hyuk Oh, Gyoung Cheol Choi, Tae Hoon Lee, Min Yi Kim, Yun Jin Park