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: 159 086 387 patent documents

This week's update (11/10/2024 12:00 CET):

118 651 new documents added

838 536 documents amended

GPI key values

Run regular monitoring (e.g. monthly or quarterly) of technical areas or companies

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EP 0788571 A1 19970813 - PROCESS FOR PREPARING ULTRA-WHITE ALUMINA TRIHYDRATE

Title (en)

PROCESS FOR PREPARING ULTRA-WHITE ALUMINA TRIHYDRATE

Title (de)

VERFAHREN ZUR HERSTELLUNG VON "ULTRAWEISSEN" ALUMINATRIHYDRATEN

Title (fr)

PROCEDE DE PREPARATION DE TRIHYDRATE D'ALUMINE ULTRA BLANC

Publication

EP 0788571 A1 19970813 (EN)

Application

EP 94926497 A 19940823

Priority

US 9409142 W 19940823

IPC 1-7

D21H 17/67

IPC 8 full level

D21H 17/67 (2006.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0788571 A1 19970813; EP 0788571 A4 19980506

DOCDB simple family (application)

EP 94926497 A 19940823