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: 157 337 350 patent documents

This week's update (19/07/2024 12:00 CET):

219 431 new documents added

1 247 852 documents amended

GPI key values

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EP 3486428 B1 20220928 - DEVICE FOR EXTENDING A TUNNEL

Title (en)

DEVICE FOR EXTENDING A TUNNEL

Title (de)

EINRICHTUNG ZUM ERWEITERN EINES TUNNELS

Title (fr)

DISPOSITIF D'ÉLARGISSEMENT D'UN TUNNEL

Publication

EP 3486428 B1 20220928 (DE)

Application

EP 17202563 A 20171120

Priority

EP 17202563 A 20171120

IPC 8 full level

E21D 9/01 (2006.01)

CPC (source: EP)

E21D 9/01 (2016.01)

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 3486428 A1 20190522; EP 3486428 B1 20220928; ES 2930167 T3 20221207; PT 3486428 T 20221025

DOCDB simple family (application)

EP 17202563 A 20171120; ES 17202563 T 20171120; PT 17202563 T 20171120