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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: 159 823 134 patent documents

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143 307 new documents added

1 003 170 documents amended

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EP 0933789 A3 20000517 - Planar transformer

Title (en)

Planar transformer

Title (de)

Flachtransformator

Title (fr)

Transformateur plan

Publication

EP 0933789 A3 20000517 (EN)

Application

EP 99101400 A 19990126

Priority

IT GE980003 A 19980130

Abstract (en)

[origin: EP0933789A2] Planar transformer equipped with means (7, 8, 9) for the extension of the air path of a hypothetical electric spark caused by the irregular working of the planar transformer. <IMAGE>

IPC 1-7

H01F 27/32

IPC 8 full level

H01F 27/28 (2006.01); H01F 27/32 (2006.01)

CPC (source: EP)

H01F 27/2804 (2013.01); H01F 27/324 (2013.01)

Citation (search report)

[XY] WO 9115861 A1 19911017 - MULTISOURCE TECH CORP [US]
[Y] GB 2197544 A 19880518 - MOSE FRANK CHARLES
[A] FR 2177863 A1 19731109 - PHILIPS NV [NL]
[A] DE 893813 C 19531019 - SIEMENS AG

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0933789 A2 19990804; EP 0933789 A3 20000517; IT 1304341 B1 20010315; IT GE980003 A0 19980130; IT GE980003 A1 19990730

DOCDB simple family (application)

EP 99101400 A 19990126; IT GE980003 A 19980130