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

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 2853750 B1 20190619 - A rotary fan

Title (en)

A rotary fan

Title (de)

Drehlüfter

Title (fr)

Ventilateur rotatif

Publication

EP 2853750 B1 20190619 (EN)

Application

EP 13306348 A 20130930

Priority

EP 13306348 A 20130930

Abstract (en)

[origin: EP2853750A1] A rotary fan comprising a rotor and a fan support structure. The rotor comprises a plurality of permanent magnets located along a circumference of the rotor and a plurality of fan blades. The support structure comprises a plurality of electromagnets. At least some of the plurality of electromagnets are configured to cause the rotor to rotate when powered by an alternating electric current.

IPC 8 full level

F04D 25/06 (2006.01)

CPC (source: EP)

F04D 25/066 (2013.01)

Citation (examination)

US 6418927 B1 20020716 - KULLIK GOETZ [DE]

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 2853750 A1 20150401; EP 2853750 B1 20190619

DOCDB simple family (application)

EP 13306348 A 20130930