Patents by Inventor Sally Yu

Sally 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).

  • Karaoke machine
    Patent number: D461469
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: August 13, 2002
    Assignee: Tao Music, Inc.
    Inventors: Lingtao Wang, Dion Dangzalan, Sally Yu, Allen Yang
  • Karaoke machine microphone
    Patent number: D462343
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: September 3, 2002
    Assignee: Tao Music, Inc.
    Inventors: Lingtao Wang, Dion Dangzalan, Sally Yu, Allen Yang