Patents by Inventor Andre M. Puleo

Andre M. Puleo 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).

  • Water-soluble package with multiple distinctly colored layers of liquid laundry detergent
    Patent number: 6521581
    Abstract: The present invention includes a layered liquid detergent composition in a water-soluble single use package, the composition comprising at least two layers, the at least two layers comprising a surfactant, a colored inorganic electrolyte, and water. In the inventive compositions at least one of the layers (the electrolyte layer) is colored. Preferred compositions include a dye in the surfactant layer, so that the compositions contain at least two layers, with two distinct colors. Preferred compositions are transparent and are enclosed within a transparent body.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: February 18, 2003
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Feng-Lung Gordon Hsu, Kwang H. Lee, Andre M. Puleo