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Coated Steel Strips, Methods Of Making The Same, Methods Of Using The Same, Stamping Blanks Prepared From The Same, Stamped Products Prepared From The Same, And Articles Of Manufacture Which Contain Such A Stamped Product - EP2086755

The patent EP2086755 was granted to Arcelormittal on Nov 29, 2017. The application was filed on Oct 30, 2006 under application number EP06842403A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP2086755

ARCELORMITTAL
Application Number
EP06842403A
Filing Date
Oct 30, 2006
Status
Granted And Under Opposition
Oct 27, 2017
Publication Date
Nov 29, 2017
External Links
Slate, Register, Google Patents

Patent Summary

Coated steel sheets for hot stamping, comprising a steel substrate coated on at least one side with a uniform aluminum or aluminum alloy coating having a thickness between 20 and 33 micrometers, wherein the coating undergoes intermetallic alloying with the steel substrate during heating, and the resulting coated steel exhibits improved weldability and resistance to roller fouling in hot stamping processes.

Patent Family

Patent Family

Patent Oppositions (5)

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
MUHR UND BENDERAug 29, 2018NEUMANN MULLER OBERWALLENEY PATENTANWALTE PARTG MBBADMISSIBLE
THYSSENKRUPP STEEL EUROPEAug 29, 2018EISENFUHR SPEISERADMISSIBLE
VOLKSWAGENAug 29, 2018LIEBLADMISSIBLE
SALZGITTER FLACHSTAHLAug 28, 2018MOSER GOTZE & PARTNER PATENTANWALTE MBBADMISSIBLE
TATA STEEL IJMUIDENAug 28, 2018GROUP SERVICESADMISSIBLE

Patent Citations (16) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTEP0356783
INTERNATIONAL-SEARCH-REPORTEP1013785
INTERNATIONAL-SEARCH-REPORTEP1336666
INTERNATIONAL-SEARCH-REPORTFR2720079
INTERNATIONAL-SEARCH-REPORTFR2758571
INTERNATIONAL-SEARCH-REPORTUS6296805
INTERNATIONAL-SEARCH-REPORTWO2006097593
OPPOSITIONDE102004007071
OPPOSITIONEP1013785
OPPOSITIONEP1380666
OPPOSITIONEP2242863
OPPOSITIONFR2833504
OPPOSITIONUS2001042393
OPPOSITIONUS6296805
OPPOSITIONWO2005078144
OPPOSITIONWO2008053273

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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