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: 157 117 910 patent documents

This week's update (12/07/2024 12:00 CET):

139 301 new documents added

1 340 825 documents amended

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EP 0020262 B1 19840215 - ISOLATED-COLLECTOR ASSEMBLY FOR POWER TUBES AND TUBE COMPRISING SUCH A COLLECTOR

Title (en)

ISOLATED-COLLECTOR ASSEMBLY FOR POWER TUBES AND TUBE COMPRISING SUCH A COLLECTOR

Publication

EP 0020262 B1 19840215 (FR)

Application

EP 80400744 A 19800528

Priority

FR 7913983 A 19790531

Abstract (en)

[origin: US4358707A] In a power electronic tube the outer surface of the collector is in the shape of a cylinder and has equidistant grooves formed in cross-sections and along the generatrices of this cylinder, which gives them flexibility and allows assembly with an insulating sleeve.

IPC 1-7

H01J 23/033

IPC 8 full level

H01J 23/027 (2006.01); H01J 23/033 (2006.01)

CPC (source: EP US)

H01J 23/033 (2013.01 - EP US)

Designated contracting state (EPC)

DE GB

DOCDB simple family (publication)

EP 0020262 A1 19801210; EP 0020262 B1 19840215; DE 3066564 D1 19840322; FR 2458140 A1 19801226; FR 2458140 B1 19820212; JP S55161336 A 19801215; US 4358707 A 19821109

DOCDB simple family (application)

EP 80400744 A 19800528; DE 3066564 T 19800528; FR 7913983 A 19790531; JP 7156880 A 19800530; US 15427480 A 19800529