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: 159 823 134 patent documents

This week's update (15/11/2024 12:00 CET):

143 307 new documents added

1 003 170 documents amended

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EP 2974380 A1 20160120 - FILTERING WELL-DEFINED FEEDBACK FROM A HARD-COUPLED VIBRATING TRANSDUCER

Title (en)

FILTERING WELL-DEFINED FEEDBACK FROM A HARD-COUPLED VIBRATING TRANSDUCER

Title (de)

FILTERN VON GUT DEFINIERTER RÜCKKOPPLUNG AUS EINEM VIBRIERENDEN HARTGEKOPPELTEN WANDLER

Title (fr)

FILTRAGE D'UNE RÉTROACTION BIEN DÉFINIE À PARTIR D'UN TRANSDUCTEUR VIBRANT À COUPLAGE PHYSIQUE

Publication

EP 2974380 A1 20160120 (EN)

Application

EP 14764706 A 20140314

Priority

US 201361788558 P 20130315
IB 2014059843 W 20140314

IPC 8 full level

H04R 25/00 (2006.01); H04R 3/00 (2006.01)

CPC (source: EP US)

H04R 25/453 (2013.01 - EP US); H04R 25/606 (2013.01 - EP US); H04R 2460/13 (2013.01 - 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

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2974380 A1 20160120; EP 2974380 A4 20161109; EP 2974380 B1 20200513

DOCDB simple family (application)

EP 14764706 A 20140314