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: 159 679 824 patent documents

This week's update (08/11/2024 12:00 CET):

164 112 new documents added

576 445 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 1027289 A1 20000816 - PURIFICATION OF A LIQUID STREAM

Title (en)

PURIFICATION OF A LIQUID STREAM

Title (de)

REINIGUNG VON FLÜSSIGKEITSSTRÖMEN

Title (fr)

EPURATION D'UN COURANT DE LIQUIDE

Publication

EP 1027289 A1 20000816 (EN)

Application

EP 98920385 A 19980508

Priority

AU 9800334 W 19980508
AU PO959797 A 19971003
AU PP032497 A 19971111

IPC 1-7

C02F 1/42; C02F 1/469; B01J 47/06; B01J 49/00

IPC 8 full level

B01D 61/44 (2006.01); B01D 69/12 (2006.01); B01J 47/02 (2006.01); B01J 47/04 (2006.01); B01J 47/06 (2006.01); B01J 47/12 (2006.01); B01J 49/00 (2006.01); C02F 1/42 (2006.01); C02F 1/44 (2006.01); C02F 1/469 (2006.01)

Citation (search report)

See references of WO 9851620A1

Designated contracting state (EPC)

DE ES FR GB NL

DOCDB simple family (publication)

EP 1027289 A1 20000816; JP 2002538944 A 20021119

DOCDB simple family (application)

EP 98920385 A 19980508; JP 2000601891 A 19980508