Patents Examined by Mark A. Buscher
  • Photographic recording material and process for the production of photographic images
    Patent number: 4906557
    Abstract: Improved photographic recording materials contain silver halide grains having at least two zones differing in their halide composition and, as stabilizer, a compound corresponding to the formula ##STR1##
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: March 6, 1990
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Manfred Becker, Reinhart Matejec, Hans hlschlager