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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: 155 519 367 patent documents

This week's update (03/05/2024 12:00 CET):

123 361 new documents added

1 354 331 documents amended

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EP 2490507 B1 20130619 - LED control device

Title (en)

LED control device

Title (de)

LED-Steuergerät

Title (fr)

Appareil de commande à DEL

Publication

EP 2490507 B1 20130619 (DE)

Application

EP 11001440 A 20110221

Priority

EP 11001440 A 20110221

Abstract (en)

[origin: EP2490507A1] The light emitting diode control unit has multiple light emitting diodes (12) that are controlled by a light emitting diode control unit. A predetermined maximum number of light emitting diodes are switched in a row in the different channels (A,B). The light emitting diodes are controllable partially and also individually and are switched by switching elements (14,16).

IPC 8 full level

H05B 33/08 (2006.01); H05B 44/00 (2022.01)

CPC (source: EP US)

H05B 45/00 (2020.01 - EP US)

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 2490507 A1 20120822; EP 2490507 B1 20130619

DOCDB simple family (application)

EP 11001440 A 20110221