Patents by Inventor Walter Mantegazza

Walter Mantegazza 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).

  • Document with anti-counterfeiting means to prevent reproducibility by photocopying
    Patent number: 5868432
    Abstract: A document with anti-counterfeiting means to prevent reproducibility by photocopying, having a sheet-like element that has, on its face, at least one region whereon an image that is visible or not visible in the visible-light range is printed and has, on the back, in register with the image provided on the face, the same image, printed with an ink that is not visible in the visible-light range.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: February 9, 1999
    Assignee: Mantegazza Antonio Arti Grafiche S.r.l.
    Inventor: Walter Mantegazza
  • Document with anti-forgery and anti-falsification means
    Patent number: 5855989
    Abstract: The present invention relates to a document with counterfeit- and forgery-preventing means particularly for valued papers and the like, which comprise a sheet-like element having, on at least one face, a graphic marking that is visible in reflected light. The particularity of the invention resides in the fact that it comprises at least one variation in the thickness of said sheet-like element which provides a graphic representation that can be viewed against the light and is complementary with respect to the at least one graphic marking.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: January 5, 1999
    Inventor: Walter Mantegazza