Patents by Inventor Frank Pontius

Frank Pontius 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).

  • Multiple color light frequencies switched audio modulation
    Patent number: 4011416
    Abstract: This invention relates to synchronizing switching systems for modulation of light spectrum frequencies, and a cathode-ray tube apparatus for exposing and simultaneously at electronic speed synchronizing such frequencies onto celluloid light sensitive photographic film. A method for so synchronizing modulating light spectrum frequencies, and for exposing such frequencies on such light sensitive film using a cathode-ray tube light source is related.
    Type: Grant
    Filed: November 6, 1975
    Date of Patent: March 8, 1977
    Assignee: Western Geophysical Company of America
    Inventor: Frank Pontius