Patents by Inventor Henry D. Ryng

Henry D. Ryng 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).

  • Video billboard
    Patent number: 5612741
    Abstract: A video billboard 10 includes one or more projection units 12 utilizing a liquid crystal light valve projector 32 to project images onto a lenticulated lens screen 34. The types of images to be displayed, along with the time of day in which the images are to be displayed, are controlled from a remote master transmitter 24. A plurality of projection units 12(a-d) can be mounted together to provide an enlarged image display area.
    Type: Grant
    Filed: November 5, 1993
    Date of Patent: March 18, 1997
    Assignee: Curtis Mathes Marketing Corporation
    Inventors: Jerry M. Loban, Henry D. Ryng