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: 159 515 718 patent documents

This week's update (01/11/2024 12:00 CET):

154 531 new documents added

1 078 520 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 0257425 A3 19880601 - CASTING

Title (en)

CASTING

Publication

EP 0257425 A3 19880601 (EN)

Application

EP 87111549 A 19870810

Priority

GB 8620153 A 19860819

Abstract (en)

[origin: EP0257425A2] In the diecasting of an aluminium alloy, there is used a core (14) of the same alloy. The core is formed by diecasting and is discarded after a single use.

IPC 1-7

B22D 17/24

IPC 8 full level

B22C 9/10 (2006.01); B22D 17/24 (2006.01)

CPC (source: EP)

B22C 9/10 (2013.01); B22C 9/103 (2013.01); B22D 17/24 (2013.01)

Citation (search report)

[A] DE 3135258 A1 19821021 - DAIMLER BENZ AG [DE]
[A] DE 3316951 A1 19831117 - TOKAI RIKA CO LTD [JP]

Designated contracting state (EPC)

AT BE CH DE ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0257425 A2 19880302; EP 0257425 A3 19880601; GB 2193914 A 19880224; GB 2193914 B 19900815; GB 8620153 D0 19861001

DOCDB simple family (application)

EP 87111549 A 19870810; GB 8620153 A 19860819