Patents by Inventor Lan Guex

Lan Guex 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).

  • Method of generating a security design with the aid of electronic means
    Patent number: 5772249
    Abstract: A net of parallel lines is generated with the aid of a computer. The ratio of the width to the spacing of two consecutive lines is equal to r.sub.o. The spacing and width of the lines are successively modulated such that their ratio is equal to r.sub.o. Subsequently, the straight lines can if so chosen be transformed into differently shaped lines or the width of the strokes can be altered in order to reproduce geometrical or artistic images.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: June 30, 1998
    Assignee: De La Rue Giori S.A.
    Inventors: Lan Guex, Laurent Mathys