Patents by Inventor Roberto Ferrazzi

Roberto Ferrazzi 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).

  • Textile sizing composition and textiles sized therewith
    Patent number: 6524493
    Abstract: The sizing of open-end yarn is disclosed. The sizing of the open-end yarns is performed using a low concentration sizing liquor including from about 20 to 100 percent by weight of high viscosity cellulose ethers.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: February 25, 2003
    Assignee: Lamberti USA, Inc.
    Inventors: Fabio Ambrogio Brusa, Roberto Ferrazzi, Giuseppe Li Bassi