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:
Jun. 25, 2024
Filed:
Jul. 26, 2019
Sicpa Holding SA, Prilly, CH;
Neda Nikseresht Ghanepour, Lausanne, CH;
Mathieu Schmid, Lausanne, CH;
Claude-Alain Despland, Prilly, CH;
Edgar Mueller, Lausanne, CH;
SICPA HOLDING SA, Prilly, CH;
Abstract
The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the present invention provides processes for optical effect layers (OEL) exhibiting one or more indicia using a magnetic assembly comprising i) a soft magnetic plate (x) comprising a) one or more voids (V) and b) one or more dipole magnets (x-), wherein the one or more dipole magnets (x-) are disposed within the one or more voids (V) and/or are facing said one or more voids (V), and/or one or more pairs of two dipole magnets (x-), wherein the dipole magnets (x-) of the one or more pairs are disposed below the soft magnetic plate (x) and are spaced apart from the one or more voids (V).