Patents by Inventor Elizabeth K. Lelental

Elizabeth K. Lelental 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).

  • Patent number: 5576172
    Abstract: A tabular grain emulsion is disclosed that combines increased speed, reduced low intensity reciprocity failure, and low levels of pressure sensitivity. The tabular grains containing greater than 70 mole percent bromide and laminae located adjacent the {111} major faces each having a thickness of less than 35 nanometers and containing at least 1 mole percent higher iodide than a host portion of the tabular grains on which they are deposited. The tabular grains contain an iridium dopant capable of reducing low intensity failure in one interior grain portion and a Group 8 speed enhancing dopant present in a concentration of from 20 to 300 molar parts per million in another interior grain portion separated from the iridium containing grain portion by at least 10 percent of the silver forming the grain structure.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: November 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: Myra T. Olm, Roger A. Bryant, Elizabeth K. Lelental, Sharon Gould, Sherrill A. Puckett