Patents by Inventor Giulia Ottavia Bianchetti

Giulia Ottavia Bianchetti 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).

  • Limescale removal compositions
    Patent number: 5677271
    Abstract: Limescale removing compositions are disclosed which comprises a C1-C6 linear or branched alkyl sulfonic acid or mixtures thereof. Said alkyl sulfonic acids are particularly efficient in removing limescale and they are furthermore stable to bleach/oxidants. Therefore, compositions can be formulated which further comprise acid-stable oxidant compounds. Also, mixtures of alkyl sulfonic acids and sulfamic acid are particularly effective in removing limescale. The compositions of the invention are used to remove limescale from a variety of surfaces.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: October 14, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Giulia Ottavia Bianchetti, Sergio Cardola, Stefano Scialla