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: 156 632 791 patent documents

This week's update (21/06/2024 12:00 CET):

121 162 new documents added

981 197 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 0268152 B1 19920506 - INTERNAL DIAMETER CUTTING WHEEL

Title (en)

INTERNAL DIAMETER CUTTING WHEEL

Publication

EP 0268152 B1 19920506 (DE)

Application

EP 87116283 A 19871105

Priority

DE 3639700 A 19861120

Abstract (en)

[origin: US4850331A] A saw for cutting thin disks from a bar includes a thin blade provided with an inner hole and having in the peripheral region of that hole a diamond coating which has a different thickness on two opposing external sides of the blade to avoid bending of the blade due to a non-uniform loading of the blade. The coating is thicker on the non-stable side of the blade, which faces the disk being cut off.

IPC 1-7

B24D 5/12

IPC 8 full level

B24D 5/12 (2006.01)

CPC (source: EP US)

B24D 5/126 (2013.01 - EP US)

Designated contracting state (EPC)

DE GB IT NL

DOCDB simple family (publication)

EP 0268152 A2 19880525; EP 0268152 A3 19900117; EP 0268152 B1 19920506; DE 3639700 A1 19880601; DE 3778832 D1 19920611; JP S63200971 A 19880819; US 4850331 A 19890725

DOCDB simple family (application)

EP 87116283 A 19871105; DE 3639700 A 19861120; DE 3778832 T 19871105; JP 29075987 A 19871119; US 12041687 A 19871113