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Expired European patentEurope

Improved head related transfer functions for panned stereo audio content

EP 1800518 B1 · Applicant: DOLBY LABORATORIES LICENSING 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 October 10, 2005 and granted April 16, 2014. A European patent lasts at most 20 years from filing, so its term ended October 10, 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 10, 2005
PublishedJune 27, 2007
GrantedApril 16, 2014
Term endedOctober 10, 2025
Application numberEP 05791205
Classification (CPC)H04S3/00

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedOct 10, 2005PublishedJune 27, 2007Patent grantedApril 16, 2014Term endedOct 10, 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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