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Expired European patentEurope

System and method for identifiying semantic intent from acoustic information

EP 1669980 B1 · Applicant: MICROSOFT CORPORATION

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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 November 22, 2005 and granted April 29, 2009. A European patent lasts at most 20 years from filing, so its term ended November 22, 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.
FiledNovember 22, 2005
PublishedJune 14, 2006
GrantedApril 29, 2009
Term endedNovember 22, 2025
Application numberEP 05111074
Classification (CPC)G10L15/19

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedNov 22, 2005PublishedJune 14, 2006Patent grantedApril 29, 2009Term endedNov 22, 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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