Patents by Inventor John Paul Calcagnini

John Paul Calcagnini 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).

  • Publication number: 20100005949
    Abstract: A stringed instrument tuner that detects vibrations of the string being played via an integrated circuit and displays the nearest musical note value and the deviation of that strings pitch relative to an in-tune reference pitch This tuner has a clothes pin like design that allows it to be easily mounted on a stringed instrument, such as a guitar, by squeezing the top legs of the device and applying pressure to the coil mechanism to exert force on the lower jaws so that that they open up to allow clamping and securement onto the instrument. The electronics housing is built into one of the legs of the clothes pin tuner adjacent to where the user squeezes the clothes pin with their thumb.
    Type: Application
    Filed: July 14, 2008
    Publication date: January 14, 2010
    Inventor: John Paul Calcagnini