Overt authentication features for compositions and objects and methods of fabrication and verification thereof
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United States of America Patent
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Issued Date -
Nov 25, 2010
app pub date -
Dec 19, 2005
filing date -
Dec 20, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Overt anti-counterfeiting features on objects and compositions, especially pharmaceutical compositions. In a preferred embodiment, a counterfeiting-proof overt feature that presents a visually distinctive optical variable or invariable effect is manufactured on a pharmaceutical composition using a purely physical process. Further preferred are counterfeiting-proof, overt features that comprise at least one engineered array of micro- or nanostructures. Also provided are methods and apparatus for the manufacturing of said overt features on said objects and compositions, including pharmaceutical compositions, and for verifying the authenticity of said features. The inventive features do not reside in the method of making the stamp or the instrument used for stamping.
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