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Functional Element, A Method For Producing A Functional Element, And A Product

Patent No. EP4347271 (titled "Functional Element, A Method For Producing A Functional Element, And A Product") was filed by OVD Kinegram on May 30, 2022. The application was issued on Oct 9, 2024.

Patent Summary

Functional element with novel optical effects based on asymmetric plasmonic structures that exhibit distinct color impressions at different angles of incidence, making them resistant to counterfeiting and difficult to replicate using conventional printing techniques. The element features a metallized relief structure with an asymmetric profile shape that generates a plasmon resonance, producing a stable color impression that remains consistent over a wide range of viewing angles. The structure can be combined with additional features such as microlens grids, microimages, and moiré patterns to create complex optical effects.

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Patent Oppositions (2)

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentative
GIESECKEDEVRIENT CURRENCY TECHNOLOGYJul 8, 2025PATENTANWALTE GEYER
HUECK FOLIEN GESELLSCHAFTJul 8, 2025BURGER

Dossier Documents

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EP4347271

OVD KINEGRAM
Application Number
EP22732454A
Filing Date
May 30, 2022
Status
Granted And Under Opposition
Sep 6, 2024
Publication Date
Oct 9, 2024
External Links
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