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Expired European patentEurope

Stereo compatible multi-channel audio coding

EP 1784819 B1 · Applicant: Koninklijke Philips Electronics N.V.

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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 October 31, 2005 and granted April 30, 2008. A European patent lasts at most 20 years from filing, so its term ended October 31, 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.
FiledOctober 31, 2005
PublishedMay 16, 2007
GrantedApril 30, 2008
Term endedOctober 31, 2025
Application numberEP 05798859
Classification (CPC)G10L19/008

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedOct 31, 2005PublishedMay 16, 2007Patent grantedApril 30, 2008Term endedOct 31, 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

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

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