Patents by Inventor John Zinger

John Zinger 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).

  • Hair color tiers
    Patent number: 4665933
    Abstract: A system of dyeing human hair is disclosed which is performed by layering the hair in tiers and selectively dyeing each layer. The tiers are annular elipsoids whose major and minor axes are in the same ratio and are fabricated in sets of ascending size. Each tier has disposed along its inner circumference, evenly spaced comb tooth-like projections.
    Type: Grant
    Filed: September 23, 1986
    Date of Patent: May 19, 1987
    Inventors: John Zinger, Joanne Zinger