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: 156 511 693 patent documents

This week's update (14/06/2024 12:00 CET):

200 241 new documents added

1 026 356 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 1416094 B1 20050330 - A multilayer sealing mat

Title (en)

A multilayer sealing mat

Title (de)

Mehrlagige Dichtungsmatte

Title (fr)

Geomembrane

Publication

EP 1416094 B1 20050330 (EN)

Application

EP 02425614 A 20021010

Priority

EP 02425614 A 20021010

Abstract (en)

[origin: EP1416094A1] A multilayer sealing mat (1) comprises a substrate supporting layer (2), a cover layer (4) joined to the former through a needling process, and an interlayer of a swellable material (3) disposed between the supporting and cover layers. At least one of the supporting and cover layers is of an at least partially biodegradable material.

IPC 1-7

E02D 31/00

IPC 8 full level

E02D 31/00 (2006.01); E02D 31/02 (2006.01)

CPC (source: EP)

E02D 31/004 (2013.01); E02D 31/02 (2013.01)

Designated contracting state (EPC)

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

DOCDB simple family (publication)

EP 1416094 A1 20040506; EP 1416094 B1 20050330; AT E292214 T1 20050415; DE 60203517 D1 20050504; DE 60203517 T2 20060216; ES 2239214 T3 20050916

DOCDB simple family (application)

EP 02425614 A 20021010; AT 02425614 T 20021010; DE 60203517 T 20021010; ES 02425614 T 20021010