Patents by Inventor Gerd Krauss

Gerd Krauss 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).

  • Photosensitive photographic silver halide recording material
    Patent number: 4738919
    Abstract: A photographic recording material containing at least one pyrazolone in at least one non-photosensitive layer I, a compound Sc, which reacts with the oxidation product of a p-phenylene diamine developer to form substantially colorless products and which is contained in a non-photosensitive layer which is not separated from the layer I by a photosensitive silver halide emulsion layer, shows improved protection against formaldehyde.
    Type: Grant
    Filed: December 11, 1986
    Date of Patent: April 19, 1988
    Assignee: Agfa Gevaert Aktiengesellschaft
    Inventors: Gerd Krauss, Gunter Renner, Erich Wolff, Hans Langen, Werner Krafft