Patents by Inventor John Edward Redden

John Edward Redden 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 processing a photosensitive material
    Patent number: 5678120
    Abstract: A method and apparatus for processing a photosensitive material. The apparatus has a processing tank for holding and retaining a processing solution, an agitation propeller, and a motor for driving said agitation propeller so as to move the processing solution. The apparatus includes a device for monitoring a characteristic feature of the motor which can be correlated to the level of the processing fluid within the processing tank.
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: October 14, 1997
    Assignee: Eastman Kodak Company
    Inventor: John Edward Redden