Patent · US Expired

Method for forgery-proof labeling of items, and forgery-proof label

US7396557B2 · kind B2 · utility

1Cited by

4References

21Claims

0Family size

Assignee

november Aktiengesellschaft Gesellschaft fur Molekulare Medizin · DE

Inventors

Georg Bauer · Koblenzer Straße, DE
Jorg Hassmann · Erlangen, DE
Harald Walter · Horgen, CH
Wolf Bertling · Erlangen, DE

Key dates

Filing date	Aug 16, 2001
Grant date	Jul 8, 2008
Priority date	—
Expiry date	May 1, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB42D2035/24
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

The invention relates to a method for forgery-proof labeling of items, such as credit cards, bank notes and the like, comprising the following steps: (a) applying, to a first layer (1) that reflects electromagnetic waves, an inert second layer (3) that is permeable to electromagnetic waves, said second layer having a predetermined thickness, (b) applying, to said second layer (3), a third layer (4) that is formed by metal clusters, and (c) linking the first layer (1) of the label so produced with the item.

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