Patents by Inventor Randall A. Hahn

Randall A. Hahn 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 apparatus
    Patent number: 5247319
    Abstract: A trailer-mounted, operator-resident camera having a reflected light viewing system. The camera comprises apparatus for scrubbing and controlling the temperature and humidity of air inside the camera and apparatus for adjusting the distance between the lens assembly and the film plane. Alternative embodiments comprising apparatus for adjusting the position of the film plane inside the camera and for using a pivotable lens assembly and a curved film plane are also disclosed.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: September 21, 1993
    Inventor: Randall A. Hahn