Patents by Inventor Roger Baretll

Roger Baretll 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 and apparatus for photographic processing
    Patent number: 5387499
    Abstract: A method of processing an imagewise exposed photographic material in a processing solution which is unstable to the extent that it deteriorates without external reaction in which the photographic material is passed through a tank containing the solution characterized in that the solution is circulated through the tank at a rate of from 0.1 to 10 tank volumes per minute.
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: February 7, 1995
    Assignee: Eastman Kodak Company
    Inventors: Anthony Earle, James I. Dunlop, Edward C. T. S. Glover, Peter D. Marsden, Roger Baretll