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: 158 081 232 patent documents

This week's update (23/08/2024 12:00 CET):

176 880 new documents added

1 259 676 documents amended

GPI key values

Run regular monitoring (e.g. monthly or quarterly) of technical areas or companies

Use built-in charts to visualise technical trends and patenting activity of companies

Choose the data you want to see and download to focus on what you are interested in

Run data quality assessments to measure the risk of incomplete search results

EP 0071752 B1 19861210 - FIRE ALARM SYSTEM

Title (en)

FIRE ALARM SYSTEM

Publication

EP 0071752 B1 19861210 (EN)

Application

EP 82105866 A 19820701

Priority

JP 10230581 A 19810702

Abstract (en)

[origin: EP0071752A1] This invention relates to a fire alarm system in which fire detectors, when operated, send address signals for identification of the alarming detectors and their output changes to a control panel besides fire signals as given by conventional fire detectors, and the control panel indicates the fire zones, the alarming detectors and their output changes.

IPC 1-7

G08B 25/00

IPC 8 full level

G08B 17/00 (2006.01); G08B 25/00 (2006.01); G08B 25/04 (2006.01)

CPC (source: EP)

G08B 25/04 (2013.01)

Designated contracting state (EPC)

BE CH DE FR GB IT LI SE

DOCDB simple family (publication)

EP 0071752 A1 19830216; EP 0071752 B1 19861210; DE 3274690 D1 19870122; JP S585896 A 19830113; JP S6355120 B2 19881101

DOCDB simple family (application)

EP 82105866 A 19820701; DE 3274690 T 19820701; JP 10230581 A 19810702