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: 157 484 516 patent documents

This week's update (26/07/2024 12:00 CET):

147 225 new documents added

921 612 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 0116423 B1 19860730 - RESIDUE TREATMENT

Title (en)

RESIDUE TREATMENT

Publication

EP 0116423 B1 19860730 (EN)

Application

EP 84300445 A 19840125

Priority

GB 8303818 A 19830211

Abstract (en)

[origin: EP0116423A1] Degradation of acetone cyanohydrin residues by dilution and pH modification to give an aqueous solution containing acetone and cyanide ions followed by treatment with a cyanide degrading micro-organism in which cyanide hydratase has been induced.

IPC 1-7

A62D 3/00

IPC 8 full level

A62D 3/02 (2007.01); A62D 3/35 (2007.01); A62D 101/26 (2007.01); A62D 101/28 (2007.01)

CPC (source: EP)

A62D 3/02 (2013.01); A62D 3/35 (2013.01); A62D 2101/26 (2013.01); A62D 2101/28 (2013.01); A62D 2203/02 (2013.01)

Designated contracting state (EPC)

DE FR GB IT NL

DOCDB simple family (publication)

EP 0116423 A1 19840822; EP 0116423 B1 19860730; DE 3460363 D1 19860904; GB 8303818 D0 19830316; JP S59155272 A 19840904

DOCDB simple family (application)

EP 84300445 A 19840125; DE 3460363 T 19840125; GB 8303818 A 19830211; JP 2272384 A 19840209