Patents by Inventor William Patrick McKenna

William Patrick McKenna 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).

  • Polyester photographic film support
    Patent number: 5718981
    Abstract: A photographic film base comprising a polyester support have a photo-grafted layer of a monomer having a formula selected from: ##STR1## where R.sub.1 is --OX or --NX.sub.2 ; each R.sub.2 is independently selected from X;R.sub.3 is X, --COOX or --CONX.sub.2 ;R.sub.4 is --CHX--, --NH-- or --O--;R.sub.5 is --CHX-- or ##STR2## R.sub.6 is X or --(CH.sub.2).sub.n --COOX, where n is an integer of from 1 to 4 carbon atoms; and each X is independently selected from hydrogen or lower alkyl having 1 to 4 carbon atoms.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: February 17, 1998
    Assignee: Eastman Kodak Company
    Inventors: Cathy Ann Fleischer, William Patrick McKenna, Kenneth William Best
  • Imaging element containing an electrically-conductive polymer blend
    Patent number: 5674654
    Abstract: Imaging element, such as photographic electrostatographic thermal imaging elements are comprised of a support, an imaging-forming layer, and a transparent electrically-conductive layer which includes an effective amount of polypyrrole/poly(styrene sulfonic acid). In a preferred embodiment, the polypyrrole/poly(styrene sulfonic acid) is dispersed in a binder.
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: October 7, 1997
    Assignee: Eastman Kodak Company
    Inventors: Nicholas Zumbulyadis, William Patrick McKenna, Brian Kenneth Brady