Patents by Inventor Martha R. Macy-Ruhe

Martha R. Macy-Ruhe 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: 5536451
    Abstract: Aqueous, liquid hard surface detergent compositions having good filming/streaking characteristics contain short chain amphocarboxylate detergent surfactant; hydrophobic, volatile cleaning solvent; and, optionally, zwitterionic detergent surfactant and/or monoethanolamine and/or other specific beta-aminoalkanols for improved filming/streaking and good cleaning. Preferred formulas do not contain large amounts of builders and/or other materials that contribute to bad spotting and filming and said formulas are suitable for general purpose cleaning including cleaning of glass.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: July 16, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Ronald A. Masters, Michael S. Maile, Martha R. Macy-Ruhe