Patents by Inventor John M. Mangus

John M. Mangus 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).

  • Method for reducing the dye stain in photographic elements
    Patent number: 6436624
    Abstract: A method for reducing dye stain of an exposed photographic element, said element comprising a support having thereon at least one image-forming layer containing a photobleachable dye, the method comprising processing the element, and exposing the processed element, in presence of a N-oxyazinium, to radiation that can be absorbed either by the photobleachable dye or by the N-oxyazinium.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: August 20, 2002
    Assignee: Eastman Kodak Company
    Inventors: Samir Y. Farid, Ramanuj Goswami, Mary E. Craver, John M. Mangus
  • Method for reducing the dye stain in photographic elements
    Publication number: 20010041314
    Abstract: A method for reducing dye stain of an exposed photographic element, said element comprising a support having thereon at least one image-forming layer containing a photobleachable dye, the method comprising processing the element, and exposing the processed element, in presence of a N-oxyazinium, to radiation that can be absorbed either by the photobleachable dye or by the N-oxyazinium.
    Type: Application
    Filed: December 4, 2000
    Publication date: November 15, 2001
    Inventors: Samir Y. Farid, Ramanuj Goswami, Mary E. Craver, John M. Mangus
  • Method for reducing the dye stain in photographic elements
    Patent number: 6207359
    Abstract: A method for reducing dye stain of an exposed photographic element, said element comprising a support having thereon at least one image-forming layer containing a photobleachable dye, the method comprising processing the element, and exposing the processed element, in presence of a N-oxyazinium, to radiation that can be absorbed either by the photobleachable dye or by the N-oxyazinium.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: March 27, 2001
    Assignee: Eastman Kodak Company
    Inventors: Samir Y. Farid, Ramanuj Goswami, Mary E. Craver, John M. Mangus