GPI coverage and content

You can use Global Patent Index (GPI) to carry out detailed searches in the EPO's worldwide bibliographic (DOCDB), legal event (INPADOC) and full-text data sets, and download or visualise the search results for statistical analysis.

Current content: 156 632 791 patent documents

This week's update (21/06/2024 12:00 CET):

121 162 new documents added

981 197 documents amended

GPI key values

Run regular monitoring (e.g. monthly or quarterly) of technical areas or companies

Use built-in charts to visualise technical trends and patenting activity of companies

Choose the data you want to see and download to focus on what you are interested in

Run data quality assessments to measure the risk of incomplete search results

EP 1647945 A1 20060419 - Value document with luminescence properties

Title (en)

Value document with luminescence properties

Title (de)

Wertdokument mit Lumineszenzeigenschaften

Title (fr)

Document de valeur à propriétés luminescentes

Publication

EP 1647945 A1 20060419 (EN)

Application

EP 04024533 A 20041014

Priority

EP 04024533 A 20041014

Abstract (en)

The invention relates to a luminescent security feature and a substrate having said luminescent security feature. The security feature comprises at least two luminescent materials which produce corresponding, overlapping emission peaks in response to an excitation radiation.

IPC 8 full level

G07D 7/12 (2006.01)

CPC (source: EP)

G07D 7/1205 (2017.04)

Citation (search report)

[X] EP 1182048 A1 20020227 - BANQUE DE FRANCE [FR]
[A] US 5666417 A 19970909 - LIANG LOUIS H [US], et al
[A] US 6223876 B1 20010501 - WALSH MICHAEL [US], et al
[A] US 4452843 A 19840605 - KAULE WITTICH [DE], et al

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1647945 A1 20060419

DOCDB simple family (application)

EP 04024533 A 20041014