Patents by Inventor Cortlandt E. Johnson

Cortlandt E. Johnson 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).

  • Photographic film with latent image multi-field bar code and eye-readable symbols
    Patent number: 4965628
    Abstract: A multi-field latent image bar code is photographically recorded in every half frame of a strip of photographic film, at least one of the fields of the code representing information pertaining to film type and another one of the fields representing the half-frame number.
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: October 23, 1990
    Assignee: Eastman Kodak Company
    Inventors: Richard Olliver, Cortlandt E. Johnson, David L. Patton