Patents by Inventor Giancarlo Dell'Olmo

Giancarlo Dell'Olmo 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 for protecting from forgery, assuring the authenticity of or personalizing pre-printed sheets
    Patent number: 5873305
    Abstract: The method provides the protection or personalization of the pre-printed sheets by impressing microengravings, on all or some of the printed portions of the sheets, through an embossing process carried out on the pre-printed sheets at a temperature higher than the softening point of the dyeing substances used for obtaining the print thereon and followed by a cooling step, said microengravings corresponding to holograms or diffraction patterns or images or words.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: February 23, 1999
    Assignee: Oranmay Investments B. V.
    Inventor: Giancarlo Dell'olmo
  • Method for impressing directly on paper holograms, kinetic holograms, diffraction patterns or microengravings producing other optical effects
    Patent number: 5862750
    Abstract: A method for impression microengravings, which reproduce holograms, kinetic holograms, or diffraction patterns, directly on paper through an embossing process. Paper is subjected to a humidification step to give it a degree of humidity between 60 and 80% of relative humidity. The humidified paper is then passed through an embossing group, consisting of an embossing cylinder carrying the microengravings and a counterthrust cylinder, at a temperature and a pressure on the paper within the ranges of 90-220.degree. C. and 20-120 kg/mm.sup.2, respectively.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: January 26, 1999
    Assignee: Oranmay Investments B.V.
    Inventor: Giancarlo Dell'Olmo