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Hot Press-Formed Part, And Manufacturing Method Thereof - EP3889311

The patent EP3889311 was granted to Posco on Nov 1, 2023. The application was originally filed on Nov 20, 2019 under application number EP19888634A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3889311

POSCO
Application Number
EP19888634A
Filing Date
Nov 20, 2019
Status
Granted And Under Opposition
Sep 29, 2023
Grant Date
Nov 1, 2023
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions (2)

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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ARCELORMITTALJul 31, 2024LAVOIXADMISSIBLE
THYSSENKRUPP STEEL EUROPEJul 31, 2024COHAUSZ & FLORACKADMISSIBLE

Patent Citations (22) New

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

Citation PhasePublication Number
DESCRIPTIONUS6296805
INTERNATIONAL-SEARCH-REPORTJP2012112010
INTERNATIONAL-SEARCH-REPORTJPH0128970B
INTERNATIONAL-SEARCH-REPORTKR100723157B
INTERNATIONAL-SEARCH-REPORTKR101696121B
INTERNATIONAL-SEARCH-REPORTKR20180074292
INTERNATIONAL-SEARCH-REPORTKR20180131943
OPPOSITIONEP3396010
OPPOSITIONEP3632586
OPPOSITIONEP3889314
OPPOSITIONJP2004176181
OPPOSITIONUS6815087
OPPOSITIONWO02103073
OPPOSITIONWO2008053273
OPPOSITIONWO2009090555
OPPOSITIONWO2018221991
OPPOSITIONWO2019002026
OPPOSITIONWO2020111879
SEARCHEP1380666
SEARCHEP3396010
SEARCHEP3889314
SEARCHWO2020111879

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- BUSCARLET E, "Galvanisation et aluminiage en continu", TECHNIQUES DE L'INGENIEUR, MATERIAUX METALLIQUES, XX, XX, XX , (19960401), pages 1 - 17, XP002256890
OPPOSITION- Buscarlet Eric, "Techniques de l'Ingénieur : Galvanisation et aluminiage en continu", Les Selections, (19960410), no. M1536, pages 1 - 20, XP055841275
OPPOSITION- Fan D W, Kim Han S, Birosca S, De Cooman B C, "Critical Review of Hot Stamping Technology for Automotive Steels", Materials Science & Technology Conference MS&T, (20070901), XP093200499
OPPOSITION- Fang Chun-Jen, Wu Li-Wen, "Batch Annealing Model for Cold Rolled Coils and Its Application", China Steel Technical Report, (20150101), no. 28, pages 13 - 20, XP093200497
OPPOSITION- Fan D W; De Cooman B C, "State-of-the-knowledge on coating systems for hot stamped parts", STEEL RESEARCH INTERNATIONAL., VERLAG STAHLEISEN GMBH., DUSSELDORF., DE, DE , (20120501), vol. 83, no. 5, doi:10.1002/srin.201100292, ISSN 1611-3683, pages 412 - 433, XP009176185
OPPOSITION- Windmann M.; Röttger A.; Theisen W. , "Phase formation at the interface between a boron alloyed steel substrate and an Al-rich coating", Surface and Coatings Technology, Elsevier, NL, NL , (20130406), vol. 226, doi:10.1016/j.surfcoat.2013.03.045, ISSN 0257-8972, pages 130 - 139, XP028543490
OPPOSITION- T. Taylor, A. Clough, "Critical review of automotive hot-stamped sheet steel from an industrial perspective", MATERIALS SCIENCE AND TECHNOLOGY, Taylor & Francis, GB, GB , (20180503), vol. 34, no. 7, doi:10.1080/02670836.2018.1425239, ISSN 0267-0836, pages 809 - 861, XP055711575

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Dossier Documents

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