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: 155 519 367 patent documents

This week's update (03/05/2024 12:00 CET):

123 361 new documents added

1 354 331 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 1068521 A1 20010117 - SUPPORTING ELECTROLYTE FOR ISOTACHOPHORESIS

Title (en)

SUPPORTING ELECTROLYTE FOR ISOTACHOPHORESIS

Title (de)

LEITELEKTROLYT FÜR DIE ISOTACHOPHORESE

Title (fr)

ELECTROLYTE PRINCIPAL POUR L'ISOTACHOPHORESE

Publication

EP 1068521 A1 20010117 (DE)

Application

EP 99916900 A 19990331

Priority

DE 19814326 A 19980331
EP 9902210 W 19990331

Abstract (en)

[origin: DE19814326A1] The invention relates to a method for determining chloride anions by isotachophoresis using dithionic acid and/or its water-soluble salts as supporting electrolyte. The invention also relates to supporting-electrolyte compositions for isotachophoresis containing dithionic acid and/or its water-soluble salts.

IPC 1-7

G01N 27/447

IPC 8 full level

G01N 27/447 (2006.01)

CPC (source: EP)

G01N 27/44747 (2013.01)

Citation (search report)

See references of WO 9950652A1

Designated contracting state (EPC)

AT BE CH DE GB IT LI NL

DOCDB simple family (publication)

DE 19814326 A1 19991021; DE 19814326 C2 20030410; EP 1068521 A1 20010117; WO 9950652 A1 19991007

DOCDB simple family (application)

DE 19814326 A 19980331; EP 9902210 W 19990331; EP 99916900 A 19990331