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IP Verse

Wedge Threadform Having Crest To Root Thread Compound Relief Areas - EP3728923

The patent EP3728923 was granted to Hydril on Oct 18, 2023. The application was filed on Dec 20, 2018 under application number EP18891838A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3728923

HYDRIL
Application Number
EP18891838A
Filing Date
Dec 20, 2018
Status
Granted And Under Opposition
Sep 15, 2023
Publication Date
Oct 18, 2023
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
VALLOUREC OIL AND GAS FRANCEJul 16, 2024MBACKEADMISSIBLE

Patent Citations (11) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTUS2002074799
INTERNATIONAL-SEARCH-REPORTUS2006145480
INTERNATIONAL-SEARCH-REPORTUS2012038147
INTERNATIONAL-SEARCH-REPORTUS2017146160
INTERNATIONAL-SEARCH-REPORTUS4600224
OPPOSITIONEP1629229
OPPOSITIONFR2308854
OPPOSITIONUS2007176423
OPPOSITIONUS6578880
OPPOSITIONUS7717478
SEARCHUS2007176423

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.

  • Date

    Description

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