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IP Verse

Method For Producing A High Strength Silicon Containing Steel Strip With Excellent Surface Quality And Said Steel Strip Produced Thereby - EP3959021

The patent EP3959021 was granted to Tata Steel Ijmuiden on Aug 24, 2022. The application was filed on Apr 17, 2020 under application number EP20717067A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3959021

TATA STEEL IJMUIDEN
Application Number
EP20717067A
Filing Date
Apr 17, 2020
Status
Granted And Under Opposition
Jul 22, 2022
Publication Date
Aug 24, 2022
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
SSAB TECHNOLOGYMay 24, 2023MELIN GRANBERGADMISSIBLE

Patent Citations (18) New

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

Citation PhasePublication Number
DESCRIPTIONCN102764760
DESCRIPTIONJPH11156407
DESCRIPTIONUS2015243418
DESCRIPTIONUS5235840
EXAMINATIONEP0377734
INTERNATIONAL-SEARCH-REPORTDE102007005015
INTERNATIONAL-SEARCH-REPORTJPH11156407
INTERNATIONAL-SEARCH-REPORTJPS61206507
INTERNATIONAL-SEARCH-REPORTUS2010218911
OPPOSITIONJP2005297008
OPPOSITIONJP3781344B
OPPOSITIONJP5326709B
OPPOSITIONJP6288321B
OPPOSITIONJPH11267741
OPPOSITIONUS2010218911
OPPOSITIONUS5001915
OTHERUS2010218911
OTHERUS5001915

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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