Patents by Inventor Donna L. Tomko

Donna L. Tomko 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).

  • Optically brightened polyolefin coated paper support
    Patent number: 4859539
    Abstract: An improved photographic support, especially useful for color prints, is comprised of a paper base material having thereon a polyolefin coating containing a white pigment and a mixture of optical brighteners, such mixture comprising certain fluorescent bis(benzoxazolyl)stilbenes. The support exhibits improved brightness at low brightener concentration and unexpected resistance to brightener exudation.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: August 22, 1989
    Assignee: Eastman Kodak Company
    Inventors: Donna L. Tomko, Kenneth G. Harbison
  • Optically brightened photographic silver halide element with a polyolefin paper coated support
    Patent number: 4794071
    Abstract: An improved photographic support, especially useful for color prints, is comprised of a paper base material having thereon a polyolefin coating containing a white pigment and a mixture of optical brighteners, such mixture comprising certain fluorescent bis(benzoxazolyl)stilbenes. The support exhibits improved brightness at low brightener concentration and unexpected resistance to brightener exudation.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: December 27, 1988
    Assignee: Eastman Kodak Company
    Inventors: Donna L. Tomko, Kenneth Harbison