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A Method For Manufacturing A Metal Sheet With A Znal Coating And With Optimised Drying, Corresponding Metal Sheet, Part And Vehicle

Patent No. EP2906734 (titled "A Method For Manufacturing A Metal Sheet With A Znal Coating And With Optimised Drying, Corresponding Metal Sheet, Part And Vehicle") was filed by Arcelormittal on Feb 10, 2014. The application was issued on Jun 1, 2022.

Patent Summary

A process for producing a steel sheet with a zinc-based coating having a controlled waviness profile. The process involves cold rolling the steel substrate with smooth working rolls to reduce the waviness of the coating's outer surface, characterized by an arithmetic mean waviness (Wa0.8) of less than 0.8 μm. The coating composition includes 0.2-0.7% aluminum by weight, with optional additional elements present in less than 0.3% by weight.

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Patent Family

Patent Oppositions (6)

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
TATA STEEL NEDERLAND TECHNOLOGYMar 1, 2023GROUP SERVICES
TATA STEEL UKMar 1, 2023WYNNE JONES
THYSSENKRUPP STEEL EUROPEMar 1, 2023EISENFUHR SPEISER
VOESTALPINE STAHLMar 1, 2023WSL PATENTANWALTE PARTNERSCHAFT MBB
TATA STEEL IJMUIDENFeb 28, 2023BIJVANK
SALZGITTER FLACHSTAHLFeb 27, 2023MOSER GOTZE & PARTNER PATENTANWALTE MBB

Dossier Documents

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EP2906734

ARCELORMITTAL
Application Number
EP14706122A
Filing Date
Feb 10, 2014
Status
Granted And Under Opposition
Apr 29, 2022
Publication Date
Jun 1, 2022
External Links
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