Patents by Inventor Hans Dürnberger

Hans Dürnberger 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: 7475691
    Abstract: In a mascara brush comprising a plurality of bristles which stand out radially and are held between two intertwisted wires, with the tips of the bristles varying in length in such a way that the bristle tips form envelope sections which, seen in the circumferential direction, lie radially further outwards and radially further inwards, it is provided that, seen in the circumferential direction, the envelope sections formed by longer bristles are shorter than the envelope sections formed by shorter bristles; that the envelope sections are convex; and that the length of the shorter bristles increases progressively in the circumferential direction and corresponding to the radius of curvature of the associated envelope sections.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: January 13, 2009
    Assignee: Geka Brush GmbH
    Inventor: Hans Dürnberger
  • Mascara brush
    Patent number: D441199
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: May 1, 2001
    Assignee: Revlon Consumer Products Corporation
    Inventors: Maria Ann Johnstone, Julio Gans Russ, Jing Yi Zhu, Hans Dürnberger, Franz Stöcklein