Method for remote detection of volatile taggant
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United States of America Patent
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Feb 15, 2000
Grant Date -
N/A
app pub date -
Dec 21, 1996
filing date -
Dec 21, 1996
priority date (Note) -
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Abstract
A method of tagging and detecting objects is disclosed which comprises the steps of: (a) applying a volatile taggant to the object; and (b) subsequently detecting the presence of the taggant by the absorption, transmittance, reflectance, photon emission or fluorescence of the taggant and therefore a proximity of the tagged object. The present invention therefore provides optical sensing means which do not require physical separation of differing compounds for discrimination thereof.
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