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: 159 679 824 patent documents

This week's update (08/11/2024 12:00 CET):

164 112 new documents added

576 445 documents amended

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EP 0677208 A1 19951018 - MULTI-BLOC COPOLYMER BASED TUNABLE LIGHT EMITTING DIODE, POLYMERS SUITABLE THEREFOR AND OLIGOMERS.

Title (en)

MULTI-BLOC COPOLYMER BASED TUNABLE LIGHT EMITTING DIODE, POLYMERS SUITABLE THEREFOR AND OLIGOMERS.

Title (de)

ABSTIMMBARE LICHTEMITTIERENDE DIODE AUS MULTIBLOCKCOPOLYMER, DAFÜR GEEIGNETE POLYMERE UND OLIGOMERE.

Title (fr)

DIODE ELECTROLUMINESCENTE ACCORDABLE A BASE DE COPOLYMERES EN BLOCS MULTIPLES, POLYMERES ASSOCIES ET OLIGOMERES.

Publication

EP 0677208 A1 19951018 (EN)

Application

EP 94904345 A 19931229

Priority

EP 94904345 A 19931229
EP 92204100 A 19921229
EP 93201637 A 19930608
NL 9300280 W 19931229

IPC 1-7

H01L 33/00; H05B 33/14; C09K 11/06; C08G 77/60

IPC 8 full level

C08G 77/60 (2006.01); C09K 11/06 (2006.01); H01L 33/00 (2006.01); H05B 33/14 (2006.01)

Citation (search report)

See references of WO 9415368A1

Designated contracting state (EPC)

BE CH DE DK ES FR GB GR IE IT LI NL SE

DOCDB simple family (publication)

EP 0677208 A1 19951018

DOCDB simple family (application)

EP 94904345 A 19931229