Patent · US Active

Multi-layered foil body

US9323099B2 · kind B2 · utility

1Cited by

3References

16Claims

0Family size

Assignees

LEONHARD KURZ Stiftung & Co. KG · DE
OVD Kinegram AG · CH

Inventors

Rainer Stahl · Nuremberg, DE
Wayne Robert Tompkin · Baden, CH
Harald Walter · Horgen, CH

Key dates

Filing date	Jun 26, 2012
Grant date	Apr 26, 2016
Priority date	—
Expiry date	Jan 13, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/1334
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

The invention relates to a multi-layered foil body (1) for marking a security document, in particular a banknote. The foil body (1) has at least one color filter layer (2) and at least one change layer (4) with an electrically controllable transmittance and/or an electrically controllable color.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.