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Method For Calcining Mineral Rock In A Regenerative Parallel-Flow Vertical Shaft Furnace, And Furnace Used

Patent No. EP4175920 (titled "Method For Calcining Mineral Rock In A Regenerative Parallel-Flow Vertical Shaft Furnace, And Furnace Used") was filed by Lhoist Recherche ET Developpement on Jun 28, 2021. The application was issued on Apr 24, 2024.

Patent Summary

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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.

CompanyOpposition DateRepresentative
FELS VERTRIEBS UND SERVICEJan 24, 2025MAIKOWSKI & NINNEMANN PATENTANWALTE PARTNERSCHAFT MBB
MAERZ OFENBAUJan 21, 2025THYSSENKRUPP
CARMEUSEDec 17, 2024AWA BENELUX

Dossier Documents

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EP4175920

LHOIST RECHERCHE ET DEVELOPPEMENT
Application Number
EP21735319A
Filing Date
Jun 28, 2021
Status
Granted And Under Opposition
Mar 22, 2024
Publication Date
Apr 24, 2024
External Links
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