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: 157 117 910 patent documents

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

139 301 new documents added

1 340 825 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 0156965 B1 19871119 - DIAPHRAGM PUMP

Title (en)

DIAPHRAGM PUMP

Publication

EP 0156965 B1 19871119 (DE)

Application

EP 84113850 A 19841116

Priority

DE 3347538 A 19831230

Abstract (en)

[origin: EP0156965A2] 1. A diaphragm pump for liquids, the connecting rod thereof moving the diaphragm and having an adjustable supporting surface for the diaphragm, characterized in that the supporting surface in the form of a supporting ring (26) is adjustable at the connecting rod in varius positions relative to the diaphragm fixation (23, 24).

IPC 1-7

F04B 43/02

IPC 8 full level

F04B 43/02 (2006.01)

CPC (source: EP US)

F04B 43/02 (2013.01 - EP US)

Designated contracting state (EPC)

CH DE FR GB LI

DOCDB simple family (publication)

DE 3347538 A1 19850711; DE 3467603 D1 19871223; EP 0156965 A2 19851009; EP 0156965 A3 19860430; EP 0156965 B1 19871119; JP H0124388 Y2 19890724; JP S60127489 U 19850827

DOCDB simple family (application)

DE 3347538 A 19831230; DE 3467603 T 19841116; EP 84113850 A 19841116; JP 19694684 U 19841228