Patents by Inventor Stefan G. de Fay

Stefan G. de Fay 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).

  • Patent number: 5012349
    Abstract: A method and device for recording, storing and reproducing graphic symbols such as text, indeograms and the like on a carrier comprises an independent portable assembly with an optical pick up, a memory for the storage of data and a printer. Graphic symbols can be picked up by placing the optical pick up in contact with, or in close proximity to, the carrier and drawing it along the line of text or symbols to be copied. These symbols are recorded in the memory and can be reproduced by placing the printer against another carrier and drawing the device across it. The quality of recording and reproduction is independent of the speed at which the device is drawn along the line of text, since the optical pick up is arranged to scan the symbols each time the device is advanced a predetermined distance.
    Type: Grant
    Filed: August 8, 1988
    Date of Patent: April 30, 1991
    Inventor: Stefan G. de Fay