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: 157 904 336 patent documents

This week's update (16/08/2024 12:00 CET):

267 668 new documents added

1 492 799 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 1053408 A1 20001122 - MACHINE ELEMENT WITH HIRTH-TYPE SERRATIONS

Title (en)

MACHINE ELEMENT WITH HIRTH-TYPE SERRATIONS

Title (de)

HIRTH-VERZAHNTES MASCHINENELEMENT

Title (fr)

ELEMENT DE MACHINE A CRANTAGE HIRTH

Publication

EP 1053408 A1 20001122 (DE)

Application

EP 99908876 A 19990211

Priority

DE 19805676 A 19980212
DE 29802374 U 19980212
EP 9900893 W 19990211

Abstract (en)

[origin: WO9941513A1] The invention relates to a machine element with Hirth-type serrations, characterized in that individual serration elements are configured unsymmetrically.

IPC 1-7

F16D 1/033; F16D 1/076

IPC 8 full level

F16D 1/033 (2006.01); F16D 1/076 (2006.01)

CPC (source: EP)

F16D 1/033 (2013.01); F16D 1/076 (2013.01)

Citation (search report)

See references of WO 9941513A1

Designated contracting state (EPC)

DE FR GB IT SE

DOCDB simple family (publication)

WO 9941513 A1 19990819; EP 1053408 A1 20001122

DOCDB simple family (application)

EP 9900893 W 19990211; EP 99908876 A 19990211