Patents by Inventor Michael R. Butterworth

Michael R. Butterworth 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).

  • Fabric conditioning composition
    Patent number: 4786421
    Abstract: An aqueous fabric conditioning composition comprises a fabric conditioner, such as a cationic fabric softener, optionally an electrolyte, selected from ionic salts of lithium, sodium, potassium, calcium, magnesium and aluminum, at levels up to 0.5% together with a compound containing a transition metal ion, such as Cobalt (II) ions. The transition metal ion enhances bleaching of fabrics when they are subsequently washed in a bleach-containing detergent composition.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: November 22, 1988
    Assignee: Lever Brothers Company
    Inventors: Michael R. Butterworth, John Oakes