Patents by Inventor Jung H. Dong

Jung H. Dong 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).

  • Electronic baby grand piano
    Patent number: D310232
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: August 28, 1990
    Assignee: Samick Music Corporation
    Inventor: Jung H. Dong
  • Electronic piano
    Patent number: D317170
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: May 28, 1991
    Assignee: Samick Music Corporation
    Inventor: Jung H. Dong
  • Upright style digital piano
    Patent number: D318285
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: July 16, 1991
    Assignee: Samick Music Corporation
    Inventor: Jung H. Dong