Patents by Inventor Omar Rizk

Omar Rizk 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).

  • Mascara brush
    Patent number: 7314050
    Abstract: In a mascara brush comprising a plurality of bristles which project radially outwards from an oblong core, with the bristles having varying lengths such that a first number of longer bristles, by their tips, form an outer envelope and a second number of shorter bristles, by their tips, form an inner envelope, it is provided, according to the invention with a view to varying application properties being obtained along the bristle trimming, that the envelope of the shorter bristles is conical, double-conical, convex or concave or a combination thereof.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: January 1, 2008
    Assignee: Geka Brush GmbH
    Inventors: Karl Hartstock, Omar Rizk
  • Mascara brush
    Publication number: 20060076031
    Abstract: In a mascara brush comprising a plurality of bristles which project radially outwards from an oblong core, with the bristles having varying lengths such that a first number of longer bristles, by their tips, form an outer envelope and a second number of shorter bristles, by their tips, form an inner envelope, it is provided, according to the invention with a view to varying application properties being obtained along the bristle trimming, that the envelope of the shorter bristles is conical, double-conical, convex or concave or a combination thereof.
    Type: Application
    Filed: October 5, 2005
    Publication date: April 13, 2006
    Applicant: GEKA BRUSH GMBH
    Inventors: Karl Hartstock, Omar Rizk