Patents by Inventor Silvia Zanazzi

Silvia Zanazzi 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).

  • Bleaching compositions
    Patent number: 6613726
    Abstract: The present invention provides a stable composition in the form of an emulsion comprising a diacyl peroxide and a surfactant system.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: September 2, 2003
    Inventors: Leo Gagliardi, Stefano Scialla, Vincentius Henricus Adrianus Maria Van Spaendonk, Silvia Zanazzi
  • Process of treating fabrics with a detergent tablet comprising an ion exchange resin
    Publication number: 20020028757
    Abstract: A process of treating fabrics which comprises the steps of forming an aqueous bath comprising water, a conventional laundry detergent and a laundry detergent additive tablet and subsequently contacting said fabrics with said aqueous bath, wherein said laundry detergent additive tablet comprises an ion exchange resin. A disintegration benefit is provided to the tablet used in the process according to the present invnetion.
    Type: Application
    Filed: June 7, 2001
    Publication date: March 7, 2002
    Applicant: The Procter & Gamble Company
    Inventors: Andrea Esposito, Valerio Del Duca, Silvia Zanazzi