Patents by Inventor Ingrid Gesing

Ingrid Gesing 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).

  • Bleachable antihalation system
    Patent number: 5312721
    Abstract: The invention involves a bleachable antihalation system, particularly for use in thermally developable photographic recording materials. This antihalation system contains, besides an antihalation dye, a bleaching agent that forms sulfurous acid or sulfurous acid derivatives on treatment with heat or irradiation with actinic radiation.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: May 17, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Ingrid Gesing