Patents by Inventor Chi-Ming Lam

Chi-Ming Lam 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 story board
    Patent number: 6190174
    Abstract: An interactive toy employs a plurality of figures which are employed by the user to tell a story. The figures are selected and placed at selected locations on a story board or a book. The selection and placement results in the device telling the story by synthesized speech and other visual communications. The device is also configured in a compact case for carrying and storage.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: February 20, 2001
    Assignee: Kader Industrial Company Limited
    Inventor: Chi-Ming Lam
  • Vacuum tube amplifier
    Patent number: D598004
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: August 11, 2009
    Assignee: JE Electronic Company Limited
    Inventor: Chi-ming Lam