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: 159 679 824 patent documents

This week's update (08/11/2024 12:00 CET):

164 112 new documents added

576 445 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 0200465 A2 19861105 - Vacuum devices.

Title (en)

Vacuum devices.

Title (de)

Vakuumvorrichtungen.

Title (fr)

Dispositifs à vide.

Publication

EP 0200465 A2 19861105 (EN)

Application

EP 86303052 A 19860423

Priority

GB 8510440 A 19850424

Abstract (en)

A vacuum device (10) having separable contacts or spaced electrodes (18, 20) in a mainly insulating envelope (12) wherein only a short length of the insulating wall is shielded from metal vapour produced by arcing (54) between the contacts or electrodes (18, 20). The invention relies on the fact that the insulation strength in a vacuum is greater than in air.

IPC 1-7

H01H 33/66

IPC 8 full level

H01H 33/66 (2006.01); H01H 33/662 (2006.01)

CPC (source: EP)

H01H 33/66261 (2013.01)

Designated contracting state (EPC)

CH DE FR IT LI NL

DOCDB simple family (publication)

EP 0200465 A2 19861105; GB 2174550 A 19861105; GB 8510440 D0 19850530; GB 8609930 D0 19860529; JP S61288332 A 19861218; ZA 863060 B 19861230

DOCDB simple family (application)

EP 86303052 A 19860423; GB 8510440 A 19850424; GB 8609930 A 19860423; JP 9348686 A 19860424; ZA 863060 A 19860424