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: 157 337 350 patent documents

This week's update (19/07/2024 12:00 CET):

219 431 new documents added

1 247 852 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 0280897 B1 19910508 - ROLLER MILL

Title (en)

ROLLER MILL

Publication

EP 0280897 B1 19910508 (DE)

Application

EP 88101537 A 19880203

Priority

DE 3707015 A 19870305

Abstract (en)

[origin: US4880172A] The invention relates to a roller mill with two rollers driven in opposite directions, in which the two gear driven cases are connected directly to one another by a torque support containing a flexible member.

IPC 1-7

B02C 4/42

IPC 8 full level

B02C 4/42 (2006.01)

CPC (source: EP US)

B02C 4/426 (2013.01 - EP US)

Designated contracting state (EPC)

BE DE ES FR GB IT

DOCDB simple family (publication)

EP 0280897 A2 19880907; EP 0280897 A3 19890802; EP 0280897 B1 19910508; BR 8800936 A 19881011; DE 3707015 A1 19880915; DE 3862654 D1 19910613; DK 115588 A 19880906; DK 115588 D0 19880303; DK 167741 B1 19931213; ES 2022476 B3 19911201; US 4880172 A 19891114; ZA 881162 B 19880816

DOCDB simple family (application)

EP 88101537 A 19880203; BR 8800936 A 19880304; DE 3707015 A 19870305; DE 3862654 T 19880203; DK 115588 A 19880303; ES 88101537 T 19880203; US 15557788 A 19880212; ZA 881162 A 19880219