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Expired European patentEurope

Reflective layered system comprising a plurality of layers that are to be applied to a iii-v compound semiconductor material

EP 1769540 B1 · Applicant: Osram Opto Semiconductors 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 June 29, 2005 and granted September 23, 2009. A European patent lasts at most 20 years from filing, so its term ended June 29, 2025.
  • 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.
FiledJune 29, 2005
PublishedApril 4, 2007
GrantedSeptember 23, 2009
Term endedJune 29, 2025
Application numberEP 05761634
Classification (CPC)H10H20/841

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedJune 29, 2005PublishedApril 4, 2007Patent grantedSep 23, 2009Term endedJune 29, 2025

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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