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 1370119 B1 20100707 - Multi-channel dimmer

Title (en)

Multi-channel dimmer

Title (de)

Mehrkanaldimmer

Title (fr)

Gradateur à canaux multiples

Publication

EP 1370119 B1 20100707 (DE)

Application

EP 03010437 A 20030509

Priority

DE 10225004 A 20020606
DE 10247333 A 20021010

Abstract (en)

[origin: EP1370119A2] The dimmer device has a number of power stages (1.1-1.n) thermally coupled to a common cooling body (2) and designed for optional parallel connection of at least two power stages on the load side. The power stages, which are coupled on the input side, are connected to an input stage (3) delivering the entire load current, whereby the input stage has a device for current limiting based on thermal monitoring.

IPC 8 full level

H05B 39/08 (2006.01); H05B 39/00 (2006.01)

CPC (source: EP)

H05B 39/00 (2013.01); H05B 39/08 (2013.01)

Citation (examination)

US 5352958 A 19941004 - CUNNINGHAM DAVID W [US], et al

Designated contracting state (EPC)

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

DOCDB simple family (publication)

EP 1370119 A2 20031210; EP 1370119 A3 20061227; EP 1370119 B1 20100707

DOCDB simple family (application)

EP 03010437 A 20030509