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

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EP 0234392 B1 19910313 - PHOTOGRAPHIC-RECORDING MATERIAL AND PROCESS FOR MAKING PHOTOGRAPHIC IMAGES

Title (en)

PHOTOGRAPHIC-RECORDING MATERIAL AND PROCESS FOR MAKING PHOTOGRAPHIC IMAGES

Publication

EP 0234392 B1 19910313 (DE)

Application

EP 87101792 A 19870210

Priority

DE 3605712 A 19860222

Abstract (en)

[origin: US4906557A] Improved photographic recording materials contain silver halide grains having at least two zones differing in their halide composition and, as stabilizer, a compound corresponding to the formula <IMAGE>

IPC 1-7

G03C 1/005; G03C 1/34

IPC 8 full level

G03C 1/005 (2006.01); G03C 1/34 (2006.01)

CPC (source: EP US)

G03C 1/346 (2013.01 - EP US)

Designated contracting state (EPC)

BE DE FR GB IT

DOCDB simple family (publication)

EP 0234392 A2 19870902; EP 0234392 A3 19890201; EP 0234392 B1 19910313; DE 3605712 A1 19870827; DE 3768526 D1 19910418; JP S62196649 A 19870831; US 4906557 A 19900306

DOCDB simple family (application)

EP 87101792 A 19870210; DE 3605712 A 19860222; DE 3768526 T 19870210; JP 3598887 A 19870220; US 30904289 A 19890209