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: 157 117 910 patent documents

This week's update (12/07/2024 12:00 CET):

139 301 new documents added

1 340 825 documents amended

GPI key values

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EP 3035301 B1 20220209 - METHOD FOR CHECKING AUTHENTICITY OF A DOCUMENT WITH A PHOTOCHROMIC SECUIRITY FEATURE

Title (en)

METHOD FOR CHECKING AUTHENTICITY OF A DOCUMENT WITH A PHOTOCHROMIC SECUIRITY FEATURE

Title (de)

PRÜFUNG EINER AUTHENTIZITÄT EINES DOKUMENT, MIT EINEM PHOTOCHROMEN SICHERHEITSMERKMAL

Title (fr)

CONTRÔLE DE L'AUTHENTICITÉ D'UN DOCUMENT EN UTILSENT UNE CHARACTÉRISTIQUE DE SÉCURITÉ PHOTOCHROME

Publication

EP 3035301 B1 20220209 (DE)

Application

EP 15003525 A 20151210

Priority

DE 102014018866 A 20141216
DE 102015004874 A 20150416

IPC 8 full level

G07D 7/12 (2016.01)

CPC (source: EP)

G07D 7/12 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3035301 A1 20160622; EP 3035301 B1 20220209

DOCDB simple family (application)

EP 15003525 A 20151210