Patents by Inventor Stefano Giunti

Stefano Giunti 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).

  • Laundry bleaching compositions
    Patent number: 6495501
    Abstract: The present invention relates to a liquid composition suitable for bleaching and pretreating soiled fabrics. Such composition provides cleaning and color safety benefits that are especially noticeable when such composition is used as a prespotter. The present invention also relates to methods of using such composition to bleach or pretreat fabrics.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: December 17, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Valerio Del Duca, Stefano Giunti, Roberto Scaramella
  • Liquid bleaching compositions comprising hydrogen peroxide, betaine, and ethoxylated nonionic surfactant
    Patent number: 6482786
    Abstract: The present invention relates to a liquid bleaching composition comprising a peroxygen bleach, a zwitterionic betaine surfactant, a sulphonated hydrotrope, and a nonionic surfactant. This composition is suitable to deliver excellent stain removal performance and bleaching performance on various surfaces including fabrics and hard-surfaces, with improved physical stability, especially at low temperatures.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: November 19, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Valerio Del Duca, Stefano Giunti, Nobuo Ishida
  • Bleaching composition comprising an alkoxylated benzoic acid
    Patent number: 6475970
    Abstract: The present invention relates to a liquid or solid bleaching composition comprising a peroxygen bleach and an alkoxylated benzoic acid or a salt thereof. This bleaching composition shows excellent immediate chemical stability and excellent chemical stability upon storage. Furthermore, the present invention relates to a process of treating a fabric and/or a process of treating a carpet.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: November 5, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Valerio Del Duca, Stefano Giunti, Milena Leone, Carlo Ricci, Luca Sarcinelli
  • Liquid bleaching composition with improved safety to fabrics and colors
    Patent number: 6316400
    Abstract: The present invention relates to a liquid bleaching composition comprising a peroxygen bleach and a salt free zwitterionic betaine surfactant. These compositions are suitable to deliver excellent stain removal performance and bleaching performance on fabrics, with improved safety to the fabrics and colors especially under pretreatment conditions.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: November 13, 2001
    Assignee: The Procter & Gamble Co.
    Inventors: Valerio Del Duca, Stefano Giunti, Sabina Antonioli
  • Liquid aqueous cleaning compositions
    Patent number: 6235699
    Abstract: Liquid compositions having a pH up to 7 comprise from 0.01% to 20% by weight of the total composition of a peroxygen bleach, from 0.001% to 30% by weight of the total composition of an ethoxylated nonionic surfactant, from 0.001% to 20% by weight of a zwitterionic betaine surfactant at a weight ratio of the ethoxylated nonionic surfactant to the zwitterionic betaine surfactant of from 0.01 to 20. These compositions are suitable to deliver improved stain removal performance and improved bleaching performance on various inanimate surfaces.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: May 22, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Valerio Del Duca, Dennis Gerard O'Sullivan, Carlo Ricci, Roberto Scaramella, Stefano Giunti, Sabina Antonioli