Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
June 13, 2023
0Patent Application Number
170375110
Date Filed
September 29, 2020
0Patent Citations
Patent Citations Received
Patent Primary Examiner
A document, product, or package, such as a banknote, passport or the like comprises structures having dichroic effects that change color with viewing angle in both transmission and reflection. Such structures can be useful as security features that counter the ability to effectively use counterfeit documents, products, packages, etc.
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