X-ray or gamma ray systems or devices – Specific application – Fluorescence
Reexamination Certificate
2008-03-13
2009-11-24
Kao, Chih-Cheng G (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Fluorescence
Reexamination Certificate
active
07623621
ABSTRACT:
An object has a taggant placed in a first portion thereof and has a visible symbol placed on a second portion thereof. When the object is to be identified and authenticated, the taggant is made to radiate with a specific energy signature. The energy signature and at least one image of the symbol are recorded along with a relative location that identifies the first portion of the object. The combination of the energy signature, symbol image and relative location are used to repeatedly identify and authenticate the object.
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Bergen Peter J. Van
Kao Chih-Cheng G
McGroary James J.
The United States of America as represented by the Administrator
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