Patents by Inventor Sun I. Yu

Sun I. Yu 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).

  • Portable electronic organ
    Patent number: D325924
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: May 5, 1992
    Assignee: Goldstar Co., Ltd.
    Inventor: Sun I. Yu
  • Combined piggy bank, clock and pencil holder
    Patent number: D332168
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: December 29, 1992
    Assignee: Goldstar Co., Ltd.
    Inventor: Sun I. Yu
  • Cassette tape recorder
    Patent number: D333136
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: February 9, 1993
    Assignee: Goldstar Co., Ltd.
    Inventor: Sun I. Yu