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Expired European patentEurope

Nitride semiconductor device

EP 1724847 B1 · Applicant: Nichia Corporation

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Overview

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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 May 19, 2006 and granted June 13, 2012. A European patent lasts at most 20 years from filing, so its term ended May 19, 2026.
  • 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.
FiledMay 19, 2006
PublishedNovember 22, 2006
GrantedJune 13, 2012
Term endedMay 19, 2026
Application numberEP 06010373
Classification (CPC)H10H20/832 +1 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedMay 19, 2006PublishedNov 22, 2006Patent grantedJune 13, 2012Term endedMay 19, 2026

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

Cross-check elsewhere

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.