The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 2013
Filed:
Feb. 04, 2008
Luca Gregoratti, Bagnaria Arsa, IT;
Matteo Maria Dalmiglio, Besozzo, IT;
Luca Gregoratti, Bagnaria Arsa, IT;
Matteo Maria Dalmiglio, Besozzo, IT;
Elettra-Sincrotrone Trieste Societa' Consortile Per Azioni, Frazione Basovizza Area Science Park, IT;
Abstract
The invention relates to a method for marking an item based on the formation of color centers on a lithium fluoride film. The method provides for the deposition of thin LiF films on the item or on mark supports to be applied to the item and the formation of the color centers by irradiation, thus forming an identification mark. Optionally, the method may provide for the detection of the identification mark and the control of its authenticity. The method may be employed both to guarantee the authenticity of the item and to classify it. The application of the method is particularly advantageous in the field of high value goods and specifically in the field of cultural objects.