Patents by Inventor Colin Overton

Colin Overton 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).

  • Liquid bleaching compositions
    Patent number: 4781854
    Abstract: The invention pertains to an aqueous stable thickened low-pH bleaching composition which comprises a thickening synthetic anionic surfactant of the sulphonic acid or salt type, a cold-water-soluble inorganic peroxy compound, in particular peroxymonosulphate, and a mineral acid to yield a pH of below 4.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: November 1, 1988
    Assignee: Lever Brothers Company
    Inventors: Colin Overton, Phillip E. Figdore
  • Stable thickened low pH liquid bleaching compositions containing inorganic peroxy compounds
    Patent number: 4666622
    Abstract: The present invention pertains to an aqueous stable thickened low-pH bleaching composition comprising(a) a thickening surfactant selected from the group consisting of amine-oxides, amines and cationic detergent actives,(b) a cold-water soluble inorganic peroxy compound,(c) a strong acid, and(d) optionally a bleach-compatible electrolyte salt.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: May 19, 1987
    Assignee: Lever Brothers Company
    Inventors: Alexander Martin, Colin Overton, David Machin