Optically variable security device and method

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United States of America Patent

PATENT NO 8773743
APP PUB NO 20130107335A1
SERIAL NO

13688341

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Abstract

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A security device comprising at least first and second superposed optically variable effect generating structures (3-5, 31-51), each having a surface relief microstructure, the second optically variable effect generating structure being viewable through the first.

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Patent Owner(s)

Patent OwnerAddress
DE LA RUE INTERNATIONAL LIMITEDDE LA RUE HOUSE JAYS CLOSE VIABLES BASINGSTOKE HAMPSHIRE RG22 4BS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Holmes, Brian William Hampshire, GB 52 885

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