Patents by Inventor Sandra K. Fischer

Sandra K. Fischer 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).

  • Color filter array containing a photocrosslinked polymeric mordant
    Patent number: 4876167
    Abstract: A color filter array is disclosed containing interlaid sets of laterally displaced filters comprised of a polymeric matrix and at least one dye. At least one of the sets of filters is comprised of an anionic dye and a cationic polymeric mordant having crosslinking repeating units containing two quaternary ammonium mordanting moieties and a photogenerated ethylenic crosslinking moiety.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: October 24, 1989
    Assignee: Eastman Kodak Company
    Inventors: Robert A. Snow, Hugh G. McGuckin, Ignazio S. Ponticello, Robert C. Daly, Laurel J. Pace, Sandra K. Fischer, Michael J. Hanrahan
  • Photographic element and patternable mordant composition
    Patent number: 4808510
    Abstract: A photographically negative-working patternable mordant composition is disclosed containing a photocrosslinkable polymer comprised of, for providing both mordanting and crosslinking sites, repeating units of the formula: ##STR1## wherein Ar is an aromatic linking group,R is a methylene group,R.sup.1 is independently in each occurrence a lower alkyl group,R.sup.2 is a divalent linking group,X is a photocrosslinking group, andZ is a charge balancing counter ion.The mordant composition can be coated on a support to form a photographic element.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: February 28, 1989
    Assignee: Eastman Kodak Company
    Inventors: Robert A. Snow, Hugh G. McGuckin, Ignazio S. Ponticello, Robert C. Daly, Laurel J. Pace, Sandra K. Fischer, Michael J. Hanrahan