ANTI-COUNTERFEITING OBJECT
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United States of America Patent
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Issued Date -
Aug 25, 2022
app pub date -
Jul 15, 2020
filing date -
Jul 18, 2019
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Abstract
The present application relates to an anti-counterfeiting object including a face with an optical identification marking which is readable by the eye and/or by a machine, and an authentication volume, the authentication volume extending from the face in the thickness (z) direction so as to be accessible from the face in order to be read by X-ray diffractometry (XRD). The authentication volume is a composite of a first material, referred to as the authentication material, and at least one second material, the authentication volume constituting a material volume of at least 5 mm3. The authentication material includes at least one amorphous phase, at least one crystalline phase and at least one complex metal phase. The second material is typically a polymer. The application may advantageously be implemented by 3D printing.
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