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: 158 251 954 patent documents

This week's update (30/08/2024 12:00 CET):

170 720 new documents added

1 828 765 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 0731670 A1 19960918 - PUPIL EXPANDER AND METHOD OF USING THE SAME

Title (en)

PUPIL EXPANDER AND METHOD OF USING THE SAME

Title (de)

PUPILLENDEHNEINRICHTUNG UND ANWENDUNGSVERFAHREN

Title (fr)

DILATATEUR DE PUPILLE ET SON PROCEDE D'UTILISATION

Publication

EP 0731670 A1 19960918 (EN)

Application

EP 94902453 A 19931130

Priority

US 9311552 W 19931130

IPC 1-7

A61B 17/02; A61F 2/14

IPC 8 full level

A61B 17/02 (2006.01); A61F 2/14 (2006.01); A61F 9/007 (2006.01)

Citation (search report)

See references of WO 9515120A1

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0731670 A1 19960918; JP H09505753 A 19970610

DOCDB simple family (application)

EP 94902453 A 19931130; JP 51556793 A 19931130