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: 157 337 350 patent documents

This week's update (19/07/2024 12:00 CET):

219 431 new documents added

1 247 852 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 0023668 B1 19820512 - PHOTOGRAPHIC SILVERHALIDE EMULSION WITH A STABILIZER, PROCESS FOR ITS PRODUCTION AND PHOTOGRAPHIC RECORDING MATERIAL

Title (en)

PHOTOGRAPHIC SILVERHALIDE EMULSION WITH A STABILIZER, PROCESS FOR ITS PRODUCTION AND PHOTOGRAPHIC RECORDING MATERIAL

Publication

EP 0023668 B1 19820512 (DE)

Application

EP 80104326 A 19800723

Priority

DE 2931691 A 19790804

Abstract (en)

[origin: US4316953A] Photographic emulsions are stabilized by a complex of cobalt with an aminocarboxylic acid.

IPC 1-7

G03C 1/34

IPC 8 full level

G03C 1/34 (2006.01)

CPC (source: EP US)

G03C 1/346 (2013.01 - EP US); Y10S 430/137 (2013.01 - EP)

Designated contracting state (EPC)

BE DE FR GB

DOCDB simple family (publication)

EP 0023668 A1 19810211; EP 0023668 B1 19820512; DE 2931691 A1 19810219; DE 3060415 D1 19820701; JP S5630123 A 19810326; US 4316953 A 19820223

DOCDB simple family (application)

EP 80104326 A 19800723; DE 2931691 A 19790804; DE 3060415 T 19800723; JP 10584880 A 19800802; US 17363680 A 19800730