Patents by Inventor Richard Carl Sehlin

Richard Carl Sehlin 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 recording and processing motion picture film soundtrack
    Patent number: 5753402
    Abstract: By processing color motion picture film to yield a dye-only, "silver-less" soundtrack, an antihalation layer containing silver may be incorporated into the film without interfering with the soundtrack signal in the resulting processed film. The process results in good antihalation protection of the print film during exposure, and a simplified processing procedure which does not require special processing of the exposed soundtrack relative to the image area frames.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: May 19, 1998
    Assignee: Eastman Kodak Company
    Inventors: Frank Anthony Pettrone, Richard Carl Sehlin, Mary Lynn Schmoeger