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: 161 109 020 patent documents

This week's update (17/01/2025 12:00 CET):

252 628 new documents added

3 070 833 documents amended

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EP 1017971 A4 20060920 - A COMPENSATED CAPACITIVE LIQUID LEVEL SENSOR

Title (en)

A COMPENSATED CAPACITIVE LIQUID LEVEL SENSOR

Title (de)

KOMPENSIERTER KAPAZITIVER FLÜSSIGKEITSSTANDSAUFNEHMER

Title (fr)

DETECTEUR DE NIVEAU DE LIQUIDE A EFFET CAPACITIF COMPENSE

Publication

EP 1017971 A4 20060920 (EN)

Application

EP 98942217 A 19980824

Priority

US 9817477 W 19980824
US 91718797 A 19970825
US 11837198 A 19980717

IPC 1-7

G01F 23/26; G01R 27/26

IPC 8 full level

G01C 9/06 (2006.01); G01C 9/20 (2006.01); G01F 23/26 (2006.01)

CPC (source: EP)

G01C 9/06 (2013.01); G01C 9/20 (2013.01); G01F 23/266 (2013.01); G01F 23/268 (2013.01); G01C 2009/062 (2013.01)

Citation (search report)

[A] US 5050431 A 19910924 - MCDONALD CHARLES W [US]
[A] WO 9635929 A1 19961114 - PLOECHINGER HEINZ [DE]
See references of WO 9910714A1

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

AU 9032198 A 19990316; EP 1017971 A1 20000712; EP 1017971 A4 20060920

DOCDB simple family (application)

AU 9032198 A 19980824; EP 98942217 A 19980824