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Expired European patentEurope

Compositions and methods for water control and strengthening unconsolidated formations

EP 1786882 B1 · Applicant: Halliburron Energy Services, Inc.

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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 May 23, 2005 and granted April 13, 2016. A European patent lasts at most 20 years from filing, so its term ended May 23, 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.
FiledMay 23, 2005
PublishedMay 23, 2007
GrantedApril 13, 2016
Term endedMay 23, 2025
Application numberEP 05744151
Classification (CPC)C09K8/56 +1 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedMay 23, 2005PublishedMay 23, 2007Patent grantedApril 13, 2016Term endedMay 23, 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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