3m Innovative Properties Company

Carla H Barnes

Kui Chen-Ho

Justin M Johnson

Suman K Patel

James W Howard

Travis L Potts

James B Snyder

Tadesse G Nigatu

In some examples, an optically active article includes a retroreflective substrate; and at least one security element disposed at the retroreflective substrate; an article message disposed at the retroreflective substrate, and wherein the at least one security element comprises validation information that is detectable outside a visible light spectrum, and wherein a combination of the article message and the validation information of the at least one security element indicates whether the optically active article is counterfeit.

Counterfeit detection of an optically active article using security elements

Growing community of inventors

Saint Paul, MN, United States of America

Carla H Barnes