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: 157 593 259 patent documents

This week's update (02/08/2024 12:00 CET):

108 752 new documents added

1 451 440 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 1777420 B1 20090107 - Valve configuration

Title (en)

Valve configuration

Title (de)

Ventilanordnung

Title (fr)

Configuration de soupape

Publication

EP 1777420 B1 20090107 (DE)

Application

EP 05022932 A 20051020

Priority

EP 05022932 A 20051020

Abstract (en)

[origin: EP1777420A1] Diffuser (10) has diffusion barrier (20) and is limited by flow channel (26), which is constantly extending in flow direction (28) starting from a diffusion inlet (18) with a narrow cross section. The diffusion barrier extends along the flow direction whereby a non linear process runs in longitudinal section plane in sections. An independent claim is also included for the turbine.

IPC 8 full level

F15D 1/08 (2006.01); F01D 9/02 (2006.01); F01D 17/10 (2006.01); F01D 17/14 (2006.01); F03B 11/00 (2006.01)

CPC (source: EP)

F01D 17/10 (2013.01); F01D 17/145 (2013.01); F05D 2250/70 (2013.01)

Designated contracting state (EPC)

CH DE FR GB IT LI

DOCDB simple family (publication)

EP 1777420 A1 20070425; EP 1777420 B1 20090107; DE 502005006431 D1 20090226

DOCDB simple family (application)

EP 05022932 A 20051020; DE 502005006431 T 20051020