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: 157 593 259 patent documents

This week's update (02/08/2024 12:00 CET):

108 752 new documents added

1 451 440 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 0376008 B1 19930303 - GAS INTRODUCING SYSTEM

Title (en)

GAS INTRODUCING SYSTEM

Publication

EP 0376008 B1 19930303 (DE)

Application

EP 89122476 A 19891206

Priority

DE 3841618 A 19881210

Abstract (en)

[origin: EP0376008A1] The invention relates to a gas introduction system for introducing gas into a flowable medium in a vessel 1. To enable the gas to be introduced in the form of the finest bubbles possible, it is proposed to provide bottom nozzles 7 on the vessel bottom 6 for the introduction of gas into the medium, which nozzles are connected to quick-opening and -closing valves. <IMAGE>

IPC 1-7

B01F 3/04; B01F 5/02; B01F 13/02

IPC 8 full level

B01F 33/40 (2022.01)

CPC (source: EP)

B01F 23/238 (2022.01); B01F 25/21 (2022.01); B01F 33/4062 (2022.01); B01F 35/71755 (2022.01)

Designated contracting state (EPC)

AT CH DE ES FR LI NL

DOCDB simple family (publication)

EP 0376008 A1 19900704; EP 0376008 B1 19930303; AT E86140 T1 19930315; DE 3841618 A1 19900613; DE 58903672 D1 19930408; ES 2040444 T3 19931016

DOCDB simple family (application)

EP 89122476 A 19891206; AT 89122476 T 19891206; DE 3841618 A 19881210; DE 58903672 T 19891206; ES 89122476 T 19891206