Patents by Inventor Christine K. Gaskell

Christine K. Gaskell 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).

  • Process for recycling photographic wash water
    Patent number: 5500125
    Abstract: A method of treating photoprocessing wash water, comprising in sequence, the steps of:A) contacting the wash water with an acrylic anion exchange resin to remove silver thiosulfate complex in the water; andB) contacting the water from step A) with an oxidizing agent that converts thiosulfate ions to sulfate ions.C) recirculating continuously through the photoprocessing wash tank and steps A) and B).
    Type: Grant
    Filed: May 19, 1994
    Date of Patent: March 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: Richard R. Horn, Christine K. Gaskell, Susan R. Krauss, Michael D. Purol