Patents by Inventor Giampietro Tognon

Giampietro Tognon 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).

  • Limestone filled Portland cements
    Patent number: 5908502
    Abstract: Limestone filled Portland cement wherein the fineness of limestone particles ranges from 5,000 to 12,000 Blaine and the fineness of clinker particles ranges from 1,500 to 3,000 Blaine.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: June 1, 1999
    Assignee: Italcementi S.p.A.
    Inventors: Stefano Cangiano, Gianmario Frigeni, Luigi Cassar, Giampietro Tognon