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Micro-optic security device with zones of color
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Micro-optic security device with absolute registration
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Use of nanoparticles to tune index of refraction of layers of a polymeric matrix to optimize microoptic (mo) focus
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Performance adhesive for security documents
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Fully micro-optic security document
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Lens-less micro-optic film
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Security document with attached security device which demonstrates increased harvesting resistance
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Surface applied micro-optic anti-counterfeit security device
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Method for surface application of security devices to paper machine manufacturing halls
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Watermark film, device and document, and method for providing watermark film, device and document
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An optical device that provides flicker-like optical effects
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Optical device that provides flicker-like optical effects
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Paper comprising one or more multi-tonal watermarks having full tones and improved watermarking tools for making such paper
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Authentication and anti-harvest security feature with machine detectable markings
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Machine-readable optical security device
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Method for the surface application of a security device over a paper machine made hole
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Fracked color-shifting security device
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Liquid crystal color-shifting security device
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Method for the surface application of a security device to a substrate.
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Security sheet or document having one or more enhanced watermarks
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