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: 158 678 210 patent documents

This week's update (20/09/2024 12:00 CET):

139 196 new documents added

884 989 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 1032829 A1 20000906 - A TESTING METHOD FOR MACHINED WORKPIECES

Title (en)

A TESTING METHOD FOR MACHINED WORKPIECES

Title (de)

TESTMETHODE FÜR BEARBEITETE WERKSTÜCKE

Title (fr)

METHODE D'ESSAI POUR PIECES USINEES

Publication

EP 1032829 A1 20000906 (EN)

Application

EP 97952139 A 19971121

Priority

SE 9701967 W 19971121

Abstract (en)

[origin: WO9927358A1] The invention refers to a method for determination of the presence, if any, of detrimental surface changes, such as increased hardness or residual stress in machined workpieces. For achieving a very reliable test result, the invention suggests that the determination is made with the aid of an eddy current probe of absolute-type.

IPC 1-7

G01N 27/90

IPC 8 full level

G01N 27/90 (2006.01)

CPC (source: EP)

G01N 27/90 (2013.01)

Citation (search report)

See references of WO 9927358A1

Designated contracting state (EPC)

BE DE ES FI FR GB IT NL SE

DOCDB simple family (publication)

WO 9927358 A1 19990603; CA 2310467 A1 19990603; EP 1032829 A1 20000906; JP 2001524669 A 20011204

DOCDB simple family (application)

SE 9701967 W 19971121; CA 2310467 A 19971121; EP 97952139 A 19971121; JP 2000522446 A 19971121