Patents by Inventor Ciuseppe Prota

Ciuseppe Prota 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).

  • Use of metal salts and chelates together with chlorites as oxidants in hair coloring
    Patent number: 5368610
    Abstract: The invention provides methods, compositions and kits for oxidative hair dyeing utilizing an oxidative hair dye precursor, and an alkali metal chlorite together with a water soluble copper, iron, manganese or cobalt salt, a chelate of said salts or a mixture of said salts and chelates.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: November 29, 1994
    Assignee: Clairol Incorporated
    Inventors: Alexander Chan, Gottfried Wenke, Ciuseppe Prota