Patents by Inventor Leandre Naddeo

Leandre Naddeo 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).

  • Patent number: 5723428
    Abstract: Particulate high bulk density non-spray-dried detergent compositions containing organic non-soap surfactant, zeolite builder and fatty acid soap as powder structurant, prepared by non-tower mixing and granulation processes involving in-situ neutralization of fatty acid to soap with aqueous sodium hydroxide, can suffer from localized particle yellowing on storage when perfume and/or fluorescer are present, due to the presence of areas of high alkalinity. Yellowing is reduced without loss of powder structuring if a defined, less than stoichiometric amount of sodium hydroxide is used for the fatty acid neutralization. Surprisingly, in bleaching powders improved bleach stability is also observed. The resulting powder can be defined in terms of a low "basic sodium" content.
    Type: Grant
    Filed: May 2, 1996
    Date of Patent: March 3, 1998
    Assignee: Lever Brothers Company
    Inventors: Jelles Vincent Boskamp, Timothy Richard Bundy, Marilena Coruzzi, Pauline Farnworth, Mark Phillip Houghton, Christophe Joyeux, Peter Cory Knight, Leandre Naddeo, Alistair Richard Sanderson
  • Patent number: 4615815
    Abstract: A free-flowing particulate fabric-softening adjunct for use in laundry detergent compositions is disclosed which comprises sodium perborate monohydrate having absorbed therein from about 5 to about 100% of its weight of a fabric-softening agent selected from the group consisting of organic compounds which contain primary, secondary, tertiary or quaternary nitrogen, or which are phosphonium or sulphonium compounds, having at least one, preferably two, relatively long hydrocarbon group substituents, conferring hydrophobicity and lubricity, and mixtures thereof.A process for preparing such free-flowing particulate adjunct as well as fabric-softening detergent compositions which clean well and at the same time provide fabric-softening through the wash are also disclosed.
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: October 7, 1986
    Assignee: Lever Brothers Company
    Inventors: Ho T. Tai, Leandre Naddeo