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Expired European patentEurope

Use of an additive for improving the flowability of fines and their reintroduction into a continuous gas-phase (co-) polymerisation of olefins reactor

EP 1828263 B1 · Applicant: INEOS EUROPE LIMITED

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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 7, 2005 and granted December 17, 2008. A European patent lasts at most 20 years from filing, so its term ended October 7, 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 7, 2005
PublishedSeptember 5, 2007
GrantedDecember 17, 2008
Term endedOctober 7, 2025
Application numberEP 05789776
Classification (CPC)C08F210/16

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedOct 7, 2005PublishedSep 5, 2007Patent grantedDec 17, 2008Term endedOct 7, 2025

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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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