Patents by Inventor Joseph Michael Simson

Joseph Michael Simson 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).

  • Photographic emulsions and elements containing rigidized carbocyanine dyes
    Patent number: 4011086
    Abstract: Photographic silver halide emulsions and elements containing completely rigidized carbocyanine dyes which can be represented by the general formula: ##STR1## wherein: A. Z represents the atoms necessary to complete a heterocyclic nucleus of the type found in cyanine dyes useful as sensitizers in photographic silver halide emulsions, andB. X.sup.- represents an anion.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: March 8, 1977
    Assignee: Eastman Kodak Company
    Inventor: Joseph Michael Simson