Liquid Feed For A Basic Oxygen Furnace

Patent No. EP4090777 (titled "Liquid Feed For A Basic Oxygen Furnace") was filed by Tata Steel Ijmuiden on Jan 13, 2021. The application was issued on Nov 5, 2025.

Patent Summary

Patent Family

Patent Family

Patent Oppositions (2)

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 DateRepresentative
THYSSENKRUPP STEEL EUROPEAug 3, 2026THYSSENKRUPP STEEL EUROPE
ARCELORMITTALJul 29, 2026LAVOIX

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

  • Get instant alerts for new documents

EP4090777

TATA STEEL IJMUIDEN
Application Number
EP21701673A
Filing Date
Jan 13, 2021
Status
Granted And Under Opposition
Oct 3, 2025
Publication Date
Nov 5, 2025