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: 158 967 801 patent documents

This week's update (04/10/2024 12:00 CET):

150 730 new documents added

999 816 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 0701635 A1 19960320 - TREATING PREBAKED CARBON ANODES FOR ALUMINIUM PRODUCTION

Title (en)

TREATING PREBAKED CARBON ANODES FOR ALUMINIUM PRODUCTION

Title (de)

BEHANDLUNG VON VORGEBRANNTEN ANODEN FÜR DIE HERSTELLUNG VON ALUMINIUM

Title (fr)

TRAITEMENT D'ANODES DE CARBONE PRECUITES POUR LA PRODUCTION D'ALUMINIUM

Publication

EP 0701635 A1 19960320 (EN)

Application

EP 94915259 A 19940601

Priority

EP 94915259 A 19940601
EP 93810401 A 19930602
EP 93810545 A 19930802
IB 9400134 W 19940601
US 21867994 A 19940328

IPC 1-7

C25C 3/12; C25C 3/08

IPC 8 full level

C25C 3/08 (2006.01); C25C 3/12 (2006.01)

Citation (search report)

See references of WO 9428200A1

Designated contracting state (EPC)

DE ES FR GB IT NL

DOCDB simple family (publication)

EP 0701635 A1 19960320; EP 0701635 B1 19980506

DOCDB simple family (application)

EP 94915259 A 19940601