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: 155 395 919 patent documents

This week's update (26/04/2024 12:00 CET):

132 468 new documents added

1 248 785 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 0783598 B1 19990303 - POLYCHROMATE CHROMIUM-PLATING PROCESS AND BATH

Title (en)

POLYCHROMATE CHROMIUM-PLATING PROCESS AND BATH

Title (de)

VERFAHREN ZUR ABSCHEIDUNG VON CHROM AUS POLYCHROMAT-BÄDERN

Title (fr)

PROCEDE DE CHROMAGE ET BAIN DE CHROMAGE CONTENANT DES POLYCHROMATES

Publication

EP 0783598 B1 19990303 (EN)

Application

EP 96925681 A 19960708

Priority

EP 96925681 A 19960708
EP 9602983 W 19960708
EP 95830339 A 19950728

Abstract (en)

[origin: WO9705301A1] A chromium-plating bath containing polychromates and sulphates undergoes the addition of sulphonamides and/or sulphonimides to produce bright deposits and to inhibit anode corrosion, and the addition of cations of Na, Mg and ammonium to increase the covering power.

IPC 1-7

C25D 3/10

IPC 8 full level

C25D 3/10 (2006.01)

CPC (source: EP)

C25D 3/10 (2013.01)

Designated contracting state (EPC)

DE ES FR GB IT NL

DOCDB simple family (publication)

WO 9705301 A1 19970213; DE 69601618 D1 19990408; DE 69601618 T2 19991111; EP 0783598 A1 19970716; EP 0783598 B1 19990303; ES 2131405 T3 19990716

DOCDB simple family (application)

EP 9602983 W 19960708; DE 69601618 T 19960708; EP 96925681 A 19960708; ES 96925681 T 19960708