Encrypted optical markers for security applications

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10745825
APP PUB NO 20180312998A1
SERIAL NO

16028176

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Abstract

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Encrypted markers that are not readily detectable can be revealed by treatment with a specific reagent used as a developer to reveal a readily detectable physical property of the marker, such as a characteristic fluorescence emission after excitation with a particular excitation wavelength, or to reveal a visible color. The encrypted marker can be developed in situ, or a sample can be removed by brushing, scraping, swabbing or scratching the marked object or item and developing the encrypted marker or a sample thereof with the appropriate developer to reveal an overt marker or optical signal. The encrypted marker may include a DNA taggant.

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Patent Owner(s)

Patent OwnerAddress
APDN (B V I ) INCTORTOLA 1110

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liang, MingHwa Benjamin East Setauket, US 29 365
Szczepanik, Maciej B Mount Sinai, US 6 40

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