Patents by Inventor Sangwon Yoon

Sangwon Yoon 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).

  • High security commercial product display apparatus
    Patent number: D436781
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: January 30, 2001
    Assignee: SmartPeg LLC
    Inventors: Richard Karsten, Kiat-Cheong Toh, Sangwon Yoon
  • Speaker for home theater
    Patent number: D645448
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: September 20, 2011
    Assignee: LG Electronics Inc.
    Inventors: Kyungmin Kim, Areum Kwon, Sooyoung Park, Kwangho Choi, Sangwon Yoon
  • Speaker for home theater
    Patent number: D645453
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: September 20, 2011
    Assignee: LG Electronics Inc.
    Inventors: Kyungmin Kim, Areum Kwon, Sooyoung Park, Kwangho Choi, Sangwon Yoon