Patents by Inventor Angela G. DelGreco

Angela G. DelGreco 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).

  • Stable liquid detergent compositions
    Patent number: 4438024
    Abstract: Stable liquid detergent compositions containing amine oxide and alcohol polyethoxylate sulfate surfactants, a water-soluble detergency builder, an alkanolamine and a hydrotrope are disclosed. The compositions recover, after freezing, to single phase isotropic liquids at relatively low temperatures.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: March 20, 1984
    Assignee: The Procter & Gamble Company
    Inventors: Angela G. DelGreco, Malcolm L. Allen, Ronald L. Jacobsen