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

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 0156544 A2 19851002 - Visual display apparatus.

Title (en)

Visual display apparatus.

Title (de)

Visuelles Anzeigegerät.

Title (fr)

Dispositif d'affichage visuel.

Publication

EP 0156544 A2 19851002 (EN)

Application

EP 85301486 A 19850304

Priority

GB 8405760 A 19840306

Abstract (en)

Visual display apparatus comprises one or more rows of light emitting sources (5) arranged to move cyclically through a display zone. The illumination of the light sources is controlled so that, to an observer, an image appears to be formed in the zone. The apparatus also includes a programming device which encodes artwork or the like in a form suitable for use by the visual display apparatus.

IPC 1-7

G09G 3/00

IPC 8 full level

G09G 3/00 (2006.01)

CPC (source: EP)

G09G 3/005 (2013.01)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0156544 A2 19851002; EP 0156544 A3 19871119; GB 8405760 D0 19840411

DOCDB simple family (application)

EP 85301486 A 19850304; GB 8405760 A 19840306