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: 156 511 693 patent documents

This week's update (14/06/2024 12:00 CET):

200 241 new documents added

1 026 356 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 0029127 B1 19820512 - METHOD FOR HARDENING A PHOTOGRAPHIC MATERIAL, AND PHOTOSENSITIVE MATERIAL

Title (en)

METHOD FOR HARDENING A PHOTOGRAPHIC MATERIAL, AND PHOTOSENSITIVE MATERIAL

Publication

EP 0029127 B1 19820512 (DE)

Application

EP 80106380 A 19801020

Priority

DE 2943807 A 19791030

Abstract (en)

[origin: US4323646A] A photographic material containing protein as binding agent is hardened with a compound which contains at least two free vinyl sulfonyl groups in the molecule and which is a bisulfite addition product of a compound containing up to 6 vinyl sulfonyl groups.

IPC 1-7

G03C 1/30

IPC 8 full level

G03C 1/30 (2006.01)

CPC (source: EP US)

G03C 1/30 (2013.01 - EP US)

Designated contracting state (EPC)

BE CH DE FR GB

DOCDB simple family (publication)

EP 0029127 A1 19810527; EP 0029127 B1 19820512; CA 1146792 A 19830524; DE 2943807 A1 19810514; DE 3060420 D1 19820701; US 4323646 A 19820406

DOCDB simple family (application)

EP 80106380 A 19801020; CA 363447 A 19801028; DE 2943807 A 19791030; DE 3060420 T 19801020; US 20124280 A 19801027