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Process For Refining Steel And Dephosphorization Agent Used In Said Process - EP3921447
The patent EP3921447 was granted to Lhoist Recherche ET Developpement on Jun 7, 2023. The application was originally filed on Feb 4, 2020 under application number EP20702162A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
EP3921447
- Application Number
- EP20702162A
- Filing Date
- Feb 4, 2020
- Status
- Granted And Under Opposition
- May 5, 2023
- Publication Date
- Jun 7, 2023
- External Links
- Slate, Register, Google Patents
Patent Summary
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.
Patent Citations (15) New
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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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