Patents by Inventor Ute Eggert

Ute Eggert 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).

  • Layers for photographic materials
    Patent number: 4898810
    Abstract: This invention relates to layers for photographic materials, which comprises a polysaccharide which is formed extracellularly by bacterial fermentation of glucose, maltose, sucrose or xylose, if appropriate in the presence of yeast, yeast hydrolysate or casein-hydrolysate, and with mono-, di- and/or tri-valent metal ions, forms gels having a solidification temperature between 24.degree. and 25.degree. C. Gellan gum has proved to be a particularly advantageous polysaccharide for use in the layers according to the invention.
    Type: Grant
    Filed: May 1, 1988
    Date of Patent: February 6, 1990
    Assignee: Ciba-Geigy AG
    Inventors: Ute Eggert, Andreas Engel, Ekkehard Kramp