Patents by Inventor Philip W. Jenkins

Philip W. Jenkins 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).

  • Photographic material containing an energy-sensitive organic o-nitroarylidene dye and physical development process of forming an image with said material
    Patent number: 4095981
    Abstract: A photographic material comprises certain dyes that, on exposure, release a species which catalyzes the reduction of silver salt oxidizing agents in the presence of organic reducing agents. The photographic material, after imagewise exposure, is heated or processed in a physical developer to develop the image.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: June 20, 1978
    Assignee: Eastman Kodak Company
    Inventors: Charles A. Goffe, deceased, Philip W. Jenkins, David M. Sturmer
  • Photographic elements with light absorbing layers
    Patent number: RE29168
    Abstract: Novel photographic materials comprising a light-sensitive layer and a light-absorbing material are described. The light-absorbing materials comprise colored components which are decolorized by various forms of energy, such as, for example heat. The novel light-absorbing materials are useful in antihalation layers particularly adapted for photographic elements designed for development with heat.
    Type: Grant
    Filed: July 1, 1975
    Date of Patent: April 5, 1977
    Assignee: Eastman Kodak Company
    Inventors: Donald W. Heseltine, Philip W. Jenkins, John D. Mee