Patents by Inventor Michael Kent Coil

Michael Kent Coil 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).

  • Black and white photographic element
    Patent number: 5928849
    Abstract: A black and white photographic element contains a filter dye of Formula (I): ##STR1## wherein each R.sup.1 is independently substituted or unsubstituted alkyl, substituted or unsubstituted alkoxy, cyano, hydroxy, carboxy, substituted or unsubstituted amido, or substituted or unsubstituted sulfonamido;n is 1-4;R.sup.2 is H, substituted or unsubstituted alkyl or amido;each of R.sup.3 and R.sup.4 is independently hydrogen or substituted or unsubstituted alkyl; andM is a cation.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: July 27, 1999
    Assignee: Eastman Kodak Company
    Inventors: Christopher Edwin Wheeler, Robert Bruce Bayley, Michael Kent Coil, Margaret Jones Helber