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

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 2458222 B1 20170927 - Turbomolecular pump

Title (en)

Turbomolecular pump

Title (de)

Turbomolekularpumpe

Title (fr)

Pompe turbomoléculaire

Publication

EP 2458222 B1 20170927 (DE)

Application

EP 11008602 A 20111027

Priority

DE 102010052660 A 20101126

Abstract (en)

[origin: EP2458222A2] The turbo molecular pump has a rotor with a blade ring. A stator disk has support ring and two partial disks, where support ring is connected with blade ring. The abutting edges (54,58) of a partial disk are shaped such that they collide in partially crossed manner.

IPC 8 full level

F04D 19/04 (2006.01); F04D 29/54 (2006.01)

CPC (source: EP)

F04D 19/042 (2013.01); F04D 29/542 (2013.01); F04D 29/644 (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 2458222 A2 20120530; EP 2458222 A3 20160309; EP 2458222 B1 20170927; DE 102010052660 A1 20120531

DOCDB simple family (application)

EP 11008602 A 20111027; DE 102010052660 A 20101126