Patents by Inventor Roberto Chiola

Roberto Chiola 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).

  • Flipper for flipper swimming
    Patent number: 4954112
    Abstract: A flipper for flipper swimming having a varying thickness blade of resin sheets of varying length stratified sheets interposed between longer resin sheets and a natural rubber shoe hot pressed to the blade.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: September 4, 1990
    Inventors: Giovanni Negrini, Roberto Chiola