Patents by Inventor Dick Ma

Dick Ma 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 computer
    Patent number: D321176
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: October 29, 1991
    Inventor: Dick Ma