Patents by Inventor Friedrich Granzer

Friedrich Granzer 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).

  • Exposure of silver halide emulsions during formation
    Patent number: 4264724
    Abstract: Photographic silver halide emulsions with increased sensitivity are obtained by exposing the silver halide emulsions to an ionizing radiation during preparation, the exposure being terminated before the grains reach their final size.
    Type: Grant
    Filed: June 28, 1978
    Date of Patent: April 28, 1981
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Erik Moisar, Friedrich Granzer, Detlev von Bock, Erhard Palm