Patents by Inventor John G. Diehl

John G. Diehl 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).

  • Patent number: 5774203
    Abstract: A self-contained machine for light exposing and developing images on a film requiring at least a film-activating operation prior to light exposure of an image and a heat development operation following exposure. The machine provides automated handling of the film in a light tight environment for convenient and rapid processing of such films. The machine includes mechanisms for handling and transporting the film and applying electrical charges and heat as required for new generation digital films.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: June 30, 1998
    Inventor: John G. Diehl