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Method For Calcining Mineral Rock In A Vertical Right Furnace With Regenerative Parallel Flow And Furnace Used - EP4324799
The patent EP4324799 was granted to Lhoist Recherche ET Developpement on Jan 15, 2025. The application was originally filed on Jun 28, 2021 under application number EP23218123A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
EP4324799
- Application Number
- EP23218123A
- Filing Date
- Jun 28, 2021
- Status
- Granted And Under Opposition
- Dec 13, 2024
- Publication Date
- Jan 15, 2025
- External Links
- Slate, Register, Google Patents
Patent Summary
A method for calcining mineral rock in a regenerative parallel flow vertical straight furnace that reduces CO2 emissions by recirculating a portion of the furnace exhaust gas, mixing it with concentrated oxygen, and reintroducing it into the combustion zone. The method also incorporates a heat exchange system to recover energy from the heated exhaust gas.
Patent Family
Patent Oppositions (3)
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 (17) 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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