Patents by Inventor Joann L. DiGiulio

Joann L. DiGiulio 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).

  • Playing cards for teaching reading of musical notes
    Patent number: 6111180
    Abstract: A set of playing cards divided into card groups, each card group corresponding to a different note value and containing cards depicting all of the tones of an octave of the chromatic scale. Each card of the card set is associated with only a single tone and depicts the one or more notes corresponding to that tone.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: August 29, 2000
    Inventor: Joann L. DiGiulio