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Multilayer Tubular Structure Having A Low Extractable Content For Hydrogen Transport - EP4155068

The patent EP4155068 was granted to Arkema France on Feb 19, 2025. The application was filed on Sep 22, 2022 under application number EP22197191A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP4155068

ARKEMA FRANCE
Application Number
EP22197191A
Filing Date
Sep 22, 2022
Status
Granted And Under Opposition
Jan 17, 2025
Publication Date
Feb 19, 2025
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentativeOpposition Status
EVONIK OPERATIONSNov 17, 2025F & E PATENTADMISSIBLE

Patent Citations (13) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication Number
DESCRIPTIONEP0428833
DESCRIPTIONEP1162061
DESCRIPTIONEP1216826
DESCRIPTIONEP1452307
DESCRIPTIONEP1505099
EXAMINATIONWO2017121961
OTHEREP1341849
OTHEREP3283293
OTHEREP3299165
OTHERWO2017121961
SEARCHEP1704996
SEARCHFR2906861
SEARCHWO2021209718

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

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    Description

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