Patents by Inventor Elisabetta L. Russo

Elisabetta L. Russo 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).

  • Acidic limescale removal compositions
    Patent number: 6551985
    Abstract: A liquid acidic composition having a sulfamic acid, a second acid, and an acid-stable polymer selected from the group consisting of a sulphonated polystyrene polymer, a vinylpyrrolidone homopolymer or copolymer, and mixtures thereof, to remove limescale-containing stains from a hard-surface.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: April 22, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Giulia Ottavia Bianchetti, Elisabetta L. Russo, Luigi Pace
  • Cleaning and bleaching composition with amidoperoxyacid
    Patent number: 5409632
    Abstract: An aqueous cleaning and bleaching composition with a pH of from about 0.5 to about 6, which contains amidoperoxyacid, hydrogen peroxide, and acylated citrate ester which has been emulsified in two or more ethoxylated alcohols is described.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: April 25, 1995
    Assignee: The Procter & Gamble Company
    Inventors: Michael S. Showell, Philip G. Sliva, Stefano Scialla, Anna M. Vercillo-Martino, Elisabetta L. Russo