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: 159 361 214 patent documents

This week's update (25/10/2024 12:00 CET):

149 148 new documents added

988 023 documents amended

GPI key values

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EP 0945043 B1 20030702 - ELECTROACOUSTIC TRANSDUCER COMPRISING A CLOSING MEMBER FOR CLOSING THE REAR VOLUME OF THE TRANSDUCER

Title (en)

ELECTROACOUSTIC TRANSDUCER COMPRISING A CLOSING MEMBER FOR CLOSING THE REAR VOLUME OF THE TRANSDUCER

Title (de)

ELEKTROAKUSTISCHER WANDLER MIT EINEM VERSCHLUSSTEIL ZUM VERSCHLIESSEN VOM RÜCKVOLUMEN DES WANDLERS

Title (fr)

TRANSDUCTEUR ELECTROACOUSTIQUE COMPORTANT UN ELEMENT OBTURATEUR POUR FERMER SON VOLUME ARRIERE

Publication

EP 0945043 B1 20030702 (EN)

Application

EP 98900977 A 19980205

Priority

EP 98900977 A 19980205
EP 97890036 A 19970228
IB 9800149 W 19980205

IPC 1-7

H04R 9/02

IPC 8 full level

H04R 9/02 (2006.01); H04R 1/02 (2006.01); H04R 9/06 (2006.01)

CPC (source: EP US)

H04R 1/06 (2013.01 - EP US); H04R 9/06 (2013.01 - EP)

Designated contracting state (EPC)

AT DE FR GB

DOCDB simple family (publication)

AT E244495 T1 20030715; DE 69816028 D1 20030807; DE 69816028 T2 20040422; EP 0945043 A1 19990929; EP 0945043 B1 20030702; JP 2000509935 A 20000802; JP 4126620 B2 20080730

DOCDB simple family (application)

AT 98900977 T 19980205; DE 69816028 T 19980205; EP 98900977 A 19980205; JP 52924098 A 19980205