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: 155 263 406 patent documents

This week's update (19/04/2024 12:00 CET):

215 613 new documents added

1 342 057 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 1095010 A1 20010502 - PROCESS FOR THE PREPARATION OF GABAPENTIN

Title (en)

PROCESS FOR THE PREPARATION OF GABAPENTIN

Title (de)

VERFAHREN ZUR HERSTELLUNG VON GABAPENTIN

Title (fr)

PROCEDE DE PREPARATION DE GABAPENTINE

Publication

EP 1095010 A1 20010502 (EN)

Application

EP 99931121 A 19990621

Priority

EP 9904289 W 19990621
IT MI981535 A 19980703

Abstract (en)

[origin: WO0001660A1] A process for the preparation of pure gabapentin in anhydrous form by treating an aqueous suspension of gabapentin with 2-methoxyethanol or 2-ethoxyethanol and crystallising with an alcoholic solvent is described.

IPC 1-7

C07C 227/40; C07C 229/28

IPC 8 full level

C07C 227/40 (2006.01); C07C 229/28 (2006.01)

CPC (source: EP)

C07C 227/40 (2013.01); C07C 2601/14 (2017.04)

Citation (search report)

See references of WO 0001660A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IE IT LI NL PT SE

DOCDB simple family (publication)

WO 0001660 A1 20000113; EP 1095010 A1 20010502; IT MI981535 A1 20000103

DOCDB simple family (application)

EP 9904289 W 19990621; EP 99931121 A 19990621; IT MI981535 A 19980703