Patents by Inventor Malcolm L. Allen

Malcolm L. Allen 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
  • Stable liquid detergent compositions
    Patent number: 4247424
    Abstract: Liquid detergent compositions are disclosed which contain an ethoxylated alcohol or ethoxylated alkyl phenol nonionic surfactant, an amine oxide surfactant, a water-soluble detergency builder, a hydrophobic emulsifier and water, said liquid detergent compositions being stable emulsion.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: January 27, 1981
    Assignee: The Procter & Gamble Company
    Inventors: Maryann Kuzel, John W. Leikhim, James M. Gajewski, Malcolm L. Allen