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Expired European patentEurope

Taste masking of ibuprofen by fluid bed coating

EP 0524180 B1 · Applicant: THE UPJOHN COMPANY

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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.

Why it's free to use

  • Filed February 26, 1991 and granted April 26, 1995. A European patent lasts at most 20 years from filing, so its term ended February 26, 2011.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by August 26, 2016.
  • 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.
FiledFebruary 26, 1991
PublishedJanuary 27, 1993
GrantedApril 26, 1995
Term endedFebruary 26, 2011
Application numberEP 91904188
Classification (CPC)A61K31/19 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedFeb 26, 1991PublishedJan 27, 1993Patent grantedApril 26, 1995Term endedFeb 26, 2011

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