Patents by Inventor Jorg Hagermann

Jorg Hagermann 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).

  • Color photographic silver halide material with TiO.sub.2 and U.V. absorber
    Patent number: 5780214
    Abstract: The light stability of a color photographic silver halide material is improved if, as UV protection, a) a TiO.sub.2 pigment having a primary particle diameter of 1 to 100 nm is added to one layer and b) a hydroxyphenylbenzotriazole compound and/or a hydroxyphenyltriazine compound is added to the same or a different layer of the material.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: July 14, 1998
    Assignee: Agfa-Gevaert AG
    Inventors: Jorg Hagermann, Arno Schmuck