Patents by Inventor Roberto Scaramella

Roberto Scaramella 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 aqueous bleaching compositions
    Patent number: 6448214
    Abstract: The present invention relates to a low viscosity, aqueous liquid composition suitable for bleaching and pretreating soiled fabrics. Such composition contains a peroxygen bleach, an ethoxylated nonionic surfactant, a zwitterionic betaine surfactant and a viscosity reducing agent. In addition to improved cleaning performance, such composition provides satisfactory fabric and color safety when used as a laundry pretreater.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: September 10, 2002
    Assignee: The Proctor & Gamble Company
    Inventors: Valerio Del Duca, Carlo Ricci, Roberto Scaramella
  • Laundry bleaching compositions
    Patent number: 6242407
    Abstract: The present invention relates to a liquid composition suitable for bleaching fabrics comprising a peroxygen bleach, from 0.001% to 10% by weight of the total composition of propyl gallate, and from 0.001% to 10% by weight of an antioxidant. These compositions are suitable for bleaching soiled fabrics, and especially pretreating fabrics while being safe to the fabrics and colors.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: June 5, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Gabriella Bertacchi, Valerio Del Duca, Carlo Ricci, Roberto Scaramella
  • 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