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Expired European patentEurope

Method and device for the regulation of a permanent-magnet excited synchronous machine having reduced power oscillations in the higher rotational speed range

EP 1504522 B1 · Applicant: ROBERT BOSCH GMBH

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Filed February 11, 2003 and granted September 21, 2005. A European patent lasts at most 20 years from filing, so its term ended February 11, 2023.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledFebruary 11, 2003
PublishedFebruary 9, 2005
GrantedSeptember 21, 2005
Term endedFebruary 11, 2023
Application numberEP 03711818
Classification (CPC)H02P21/05 +2 more

Timeline

Timeline From EPO dates

2004200620082010201220142016201820202022Application filedFeb 11, 2003PublishedFeb 9, 2005Patent grantedSep 21, 2005Term endedFeb 11, 2023

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

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Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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