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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

LHOIST RECHERCHE ET DEVELOPPEMENT
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

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

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FELS WERKEOct 13, 2025MAIKOWSKI & NINNEMANN PATENTANWALTE PARTNERSCHAFT MBBADMISSIBLE
MAERZ OFENBAUOct 11, 2025THYSSENKRUPPADMISSIBLE
CARMEUSESep 29, 2025AWA BENELUXADMISSIBLE

Patent Citations (17) New

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

Citation PhasePublication Number
DESCRIPTIONCN105000811
DESCRIPTIONUS2020048146
OPPOSITIONAT336473B
OPPOSITIONAT372519B
OPPOSITIONCN105000811B
OPPOSITIONDE102010019330
OPPOSITIONDE19843820
OPPOSITIONDE2927834
OPPOSITIONEP3237822
OPPOSITIONEP3359502
OPPOSITIONJP2002060254
OPPOSITIONJPS5711855
OPPOSITIONUS2020048146
OPPOSITIONWO2012072332
OPPOSITIONWO2017153267
SEARCHDE102010019330
SEARCHUS2020048146

Non-Patent Literature (NPL) Citations (7) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference Text
OPPOSITION- Anonymous, "Basic components and processes - Common General Knowledge", mines de Paris, (20250112), pages 1 - 4, mines de Paris, URL: https://web.archive.org/web/20250112203755/https://direns.minesparis.psl.eu/Sites/Thopt/DiapTradJS/doc/S22_En/Combustion.pdf, (20250926), XP093323560
OPPOSITION- Anonymous, "The MaerzĀ® parallel Flow Regenerative Lime Kiln", Maerz Ofenbau AG, CH, (20020101), pages 1 - 20, XP055603108
OPPOSITION- Barbon Reto , "350 tpd gas or petcoke fired MAERZ lime kiln", Maerz - Instruction manual, (20080910), pages 1 - 182, XP093323569
OPPOSITION- D18 - Kiln measurements
OPPOSITION- Ewert Patrick, "1 x R4S 600 tpd Coal ! Wood Dust fired Lime Shaft Kiln", Maerz - Instruction manual, (20130816), pages 1 - 188, XP093323566
OPPOSITION- Ewert Patrick, "F2S - 300/400 tpd MAERZ finelime kiln (coal / opt.gas)", Maerz - Instruction manual, (20140106), pages 1 - 190, Maerz - Instruction manual , URL: https://kupdf.net/download/hornomaerz_59d440b908bbc56a45687062_pdf, XP093323565
OPPOSITION- Piringer Hannes, "Lime Shaft Kilns", Energy Procedia, NL , (19000101), vol. 120, doi:10.1016/j.egypro.2017.07.156, ISSN 1876-6102, pages 75 - 95, XP085197646

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Dossier Documents

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