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IP Verse

Method For Calcining Mineral Rock In A Regenerative Parallel-Flow Vertical Shaft Furnace, And Furnace Used - EP4175920

The patent EP4175920 was granted to Lhoist Recherche ET Developpement on Apr 24, 2024. The application was filed on Jun 28, 2021 under application number EP21735319A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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
Slate, Register, Google Patents

Patent Summary

Patent Family

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 DateRepresentativeOpposition Status
FELS VERTRIEBS UND SERVICEJan 24, 2025MAIKOWSKI & NINNEMANN PATENTANWALTE PARTNERSCHAFT MBBADMISSIBLE
MAERZ OFENBAUJan 21, 2025THYSSENKRUPPADMISSIBLE
CARMEUSEDec 17, 2024AWA BENELUXADMISSIBLE

Patent Citations (18) New

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

Citation PhasePublication Number
DESCRIPTIONCN105000811
DESCRIPTIONUS2020048146
INTERNATIONAL-SEARCH-REPORTDE102010019330
INTERNATIONAL-SEARCH-REPORTUS2020048146
OPPOSITIONAT336473B
OPPOSITIONCN105000811B
OPPOSITIONDE102010019330
OPPOSITIONDE19843820
OPPOSITIONDE2927834
OPPOSITIONEP3359502
OPPOSITIONFR2436346
OPPOSITIONJP2002060254
OPPOSITIONJPS5711855
OPPOSITIONUS2020048146
OPPOSITIONWO2012072332
OPPOSITIONWO2017153267
OTHEREP3359502
OTHERJP2002060254

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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    Description

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