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: 158 383 361 patent documents

This week's update (06/09/2024 12:00 CET):

131 418 new documents added

1 347 785 documents amended

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EP 0757726 A1 19970212 - METHOD OF PRE-TREATING METAL SUBSTRATES PRIOR TO PAINTING

Title (en)

METHOD OF PRE-TREATING METAL SUBSTRATES PRIOR TO PAINTING

Title (de)

VERFAHREN ZUR VORBEHANDLUNG VON METALLSUBSTRATEN VOR DEM LACKIEREN

Title (fr)

PROCEDE DE PRETRAITEMENT DE SUBSTRATS METALLIQUES AVANT APPLICATION DE PEINTURE

Publication

EP 0757726 A1 19970212 (EN)

Application

EP 95915597 A 19950412

Priority

JP 9824994 A 19940412
US 9504303 W 19950412

Abstract (en)

[origin: WO9527809A1] A zinc phosphate conversion coated metal substrate surface is brought into contact with an aqueous solution of pH 4 - 6 which contains 2 - 200 ppm of copper (II) cations to improve the adhesion of subsequently cathodically applied paint.

IPC 1-7

C23C 22/83

IPC 8 full level

C25D 13/20 (2006.01); C23C 22/12 (2006.01); C23C 22/82 (2006.01); C23C 22/83 (2006.01)

CPC (source: EP)

C23C 22/83 (2013.01)

Designated contracting state (EPC)

AT DE ES FR GB IT NL PT SE

DOCDB simple family (publication)

WO 9527809 A1 19951019; EP 0757726 A1 19970212; EP 0757726 A4 19970409; JP H07278891 A 19951024; ZA 953033 B 19951221

DOCDB simple family (application)

US 9504303 W 19950412; EP 95915597 A 19950412; JP 9824994 A 19940412; ZA 953033 A 19950412