Patents by Inventor John C. Solberg

John C. Solberg 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).

  • Radiation-sensitive silver bromoiodide emulsions, photographic elements, and processes for their use
    Patent number: 4433048
    Abstract: Radiation-sensitive emulsions are disclosed comprised of a dispersing medium and silver bromoiodide grains. These emulsions contains tabular silver bromoiodide grains having a lower proportion of iodide in a central region than in a laterally displaced region, a thickness of less than 0.3 micron, and a diameter of at least 0.6 micron. These tubular grains exhibit an average aspect ratio of greater than 8:1 and account for at least 50 percent of the total projected area of the silver bromoiodide grains.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: February 21, 1984
    Assignee: Eastman Kodak Company
    Inventors: John C. Solberg, Roger H. Piggin, Herbert S. Wilgus