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IP Verse

Threaded Joint - EP3514431

The patent EP3514431 was granted to Nippon Steel on Sep 3, 2025. The application was filed on Sep 15, 2017 under application number EP17851037A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP3514431

NIPPON STEEL
Application Number
EP17851037A
Filing Date
Sep 15, 2017
Status
Patent Maintained As Amended
Aug 1, 2025
Publication Date
Sep 3, 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
HYDRILJan 15, 2021BOULT WADE TENNANTADMISSIBLE

Patent Citations (15) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTJP2002524712
INTERNATIONAL-SEARCH-REPORTJP2008527256
INTERNATIONAL-SEARCH-REPORTUS2002027363
INTERNATIONAL-SEARCH-REPORTWO2014199619
INTERNATIONAL-SEARCH-REPORTWO2015083382
INTERNATIONAL-SEARCH-REPORTWO2015105054
OPPOSITIONDE4345119
OPPOSITIONEP3514432
OPPOSITIONUS2002027363
OPPOSITIONUS2006145480
OPPOSITIONUS2007132239
OPPOSITIONUS30647
OPPOSITIONUS34467
OPPOSITIONUS4485511
OPPOSITIONWO2010069491

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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