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Expired European patentEurope

Process for the preparation of ruthenium hydrogenation catalysts and products thereof

EP 1090905 B1 · Applicant: E.I. DU PONT DE NEMOURS AND COMPANY

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Overview

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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 January 22, 1996 and granted December 18, 2002. A European patent lasts at most 20 years from filing, so its term ended January 22, 2016.
  • 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 July 22, 2021.
  • 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.
FiledJanuary 22, 1996
PublishedApril 11, 2001
GrantedDecember 18, 2002
Term endedJanuary 22, 2016
Application numberEP 00204493
Classification (CPC)B01J31/24 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedJan 22, 1996PublishedApril 11, 2001Patent grantedDec 18, 2002Term endedJan 22, 2016

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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