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IP Verse

Blast Furnace Operation Method - EP2796566

The patent EP2796566 was granted to JFE Steel on Jul 23, 2025. The application was filed on Mar 1, 2012 under application number EP12860851A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP2796566

JFE STEEL

Application Number: EP12860851A
Filing Date: Mar 1, 2012
Status: Patent Maintained As Amended; Jun 20, 2025
Publication Date: Jul 23, 2025
External Links: Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Oppositions

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.

Company	Opposition Date	Representative	Opposition Status
PAUL WURTH	May 29, 2019	OFFICE FREYLINGER	-

Patent Citations (20) New

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

Citation Phase	Publication Number
DESCRIPTION	JP2002047359
DESCRIPTION	JP4074467B
DESCRIPTION	JPH06100912
EXAMINATION	WO2008006764
INTERNATIONAL-SEARCH-REPORT	JPH04346610
INTERNATIONAL-SEARCH-REPORT	JPH06100912
INTERNATIONAL-SEARCH-REPORT	JPH08157916
INTERNATIONAL-SEARCH-REPORT	JPS62192509
OPPOSITION	CN102268496
OPPOSITION	EP0576869
OPPOSITION	EP2796566
OPPOSITION	JP2000192119
OPPOSITION	JP2003286511
OPPOSITION	JP2011279954
OPPOSITION	LU88553
OPPOSITION	WO2008006764
OPPOSITION	WO2013094230
OTHER	EP2038433
SEARCH	CN102268496
SEARCH	JP2000192119

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.

Date
Description

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Jun 26, 2025
Decision to maintain the European patent in amended form
OPPO
Jun 26, 2025
Decision to maintain the European patent in amended form
OPPO
Jun 20, 2025
Brief communication - Opposition proceedings
OPPO
Jun 12, 2025
(Electronic) Receipt
OPPO
Jun 12, 2025
Filing of the translation of the amended claims
OPPO
Jun 12, 2025
French translation of claims
OPPO
Jun 12, 2025
German translation of the claims
OPPO
Jun 12, 2025
Letter accompanying subsequently filed items
OPPO
Jun 12, 2025
Letter regarding the opposition procedure (no time limit)
OPPO
Jun 12, 2025
OPPODREX with handwritten amendments
OPPO
Jun 11, 2025
(Electronic) Receipt
OPPO
Jun 11, 2025
Letter accompanying subsequently filed items
OPPO
Jun 11, 2025
Letter regarding the opposition procedure (no time limit)
OPPO
Mar 13, 2025
Communication of bibliographic data
OPPO
Mar 13, 2025
Communication to opponent concerning maintenance
OPPO
Mar 13, 2025
Communication with request to file translations
OPPO
Mar 3, 2025
Maintenance of the patent with the documents specified in the final decision
OPPO
Feb 14, 2025
Brief communication - Opposition proceedings
OPPO
Feb 7, 2025
(Electronic) Receipt
OPPO
Feb 7, 2025
Letter accompanying subsequently filed items
OPPO
Feb 7, 2025
Letter regarding the opposition procedure (no time limit)
OPPO
Nov 7, 2024
Brief communication - Opposition proceedings
OPPO
Nov 7, 2024
Brief communication - Opposition proceedings
OPPO
Nov 7, 2024
Druckexemplar in opposition procedure
OPPO
Nov 7, 2024
Grounds for the decision (Annex) - opposition
OPPO
Nov 7, 2024
Interlocutory decision in opposition proceedings
OPPO
Nov 7, 2024
Interlocutory decision in opposition proceedings
OPPO
Nov 7, 2024
Means of redress
OPPO
Nov 7, 2024
Scanned annex to a communication - opposition procedure
OPPO
Nov 5, 2024
Decision of the Opposition Division and instruction
OPPO
Jul 9, 2024
Brief communication - Opposition proceedings
OPPO
Jul 1, 2024
(Electronic) Receipt
OPPO
Jul 1, 2024
Letter accompanying subsequently filed items
OPPO
Jul 1, 2024
Reply to an examination report in opposition proceedings
OPPO
Apr 30, 2024
Brief communication - Opposition proceedings
OPPO
Apr 30, 2024
Brief communication - Opposition proceedings
OPPO
Apr 30, 2024
Communication inviting the parties to file observations
OPPO
Apr 30, 2024
Communication inviting the parties to file observations
OPPO
Jan 9, 2024
Brief communication - Opposition proceedings
OPPO
Dec 29, 2023
(Electronic) Receipt
OPPO
Dec 29, 2023
Amended description with annotations
OPPO
Dec 29, 2023
Letter accompanying subsequently filed items
OPPO
Dec 29, 2023
Letter regarding the opposition procedure (no time limit)
OPPO
Nov 7, 2023
Annex to the communication - opposition
OPPO
Nov 7, 2023
Brief communication - Opposition proceedings
OPPO
Nov 7, 2023
Brief communication - Opposition proceedings
OPPO
Nov 7, 2023
Communication inviting the parties to file observations
OPPO
Nov 7, 2023
Communication inviting the parties to file observations
OPPO
Aug 17, 2023
Decision of the Board of Appeal
Appeal
Aug 17, 2023
F3032 Notification(s) of the decision
Appeal
Aug 17, 2023
F3032 Notification(s) of the decision
Appeal
Jun 1, 2023
F3013 Oral Proceedings: Forwarding minutes
Appeal
Jun 1, 2023
F3013 Oral Proceedings: Forwarding minutes
Appeal
Jun 1, 2023
F3317 Oral Proceedings: Minutes (Appellant: Proprietor + Opponent)
Appeal
May 2, 2023
F3345 Forwarding of submissions to parties
Appeal
Apr 28, 2023
F3345 Forwarding of submissions to parties
Appeal
Apr 25, 2023
(Electronic) Receipt
Appeal
Apr 25, 2023
Letter accompanying subsequently filed items
Appeal
Apr 25, 2023
Letter relating to Appeal Procedure
Appeal
Apr 21, 2023
(Electronic) Receipt
Appeal
Apr 21, 2023
Letter regarding the opposition procedure (no time limit)
Appeal
Apr 21, 2023
Request for interpreters during oral proceedings
Appeal
Mar 9, 2023
F3345 Forwarding of submissions to parties
Appeal
Mar 2, 2023
(Electronic) Receipt
Appeal
Mar 2, 2023
Letter accompanying subsequently filed items
Appeal
Mar 2, 2023
Letter dealing with oral proceedings during the appeal procedure
Appeal
Dec 23, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Appeal
Dec 23, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Appeal
Oct 8, 2022
F3345 Forwarding of submissions to parties
Appeal
Sep 30, 2022
(Electronic) Receipt
Appeal
Sep 30, 2022
Letter accompanying subsequently filed items
Appeal
Sep 30, 2022
Letter relating to Appeal Procedure
Appeal
Sep 26, 2022
Advice of delivery
Appeal
Sep 21, 2022
F3011.1 Oral Proceedings: summons
Appeal
Sep 21, 2022
F3011.1 Oral Proceedings: summons
Appeal
Sep 16, 2022
F3010 Oral proceedings: order for summons
Appeal
Apr 25, 2022
F3345 Forwarding of submissions to parties
Appeal
Apr 25, 2022
F3345 Forwarding of submissions to parties
Appeal
Apr 20, 2022
(Electronic) Receipt
Appeal
Apr 20, 2022
Letter accompanying subsequently filed items
Appeal
Apr 20, 2022
Reply to appeal
Appeal
Apr 19, 2022
(Electronic) Receipt
Appeal
Apr 19, 2022
Letter accompanying subsequently filed items
Appeal
Apr 19, 2022
Reply to appeal
Appeal
Mar 2, 2022
Composition of the board (T)
Appeal
Dec 10, 2021
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Appeal
Dec 10, 2021
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Appeal
Dec 10, 2021
F3345 Forwarding of submissions to parties
Appeal
Dec 7, 2021
(Electronic) Receipt
Appeal
Dec 7, 2021
(Electronic) Receipt
Appeal
Dec 7, 2021
(Electronic) Receipt
Appeal
Dec 7, 2021
Amended claims with annotations
Appeal
Dec 7, 2021
Amended claims with annotations
Appeal
Dec 7, 2021
Amended claims with annotations
Appeal
Dec 7, 2021
Amended claims with annotations
Appeal
Dec 7, 2021
Amended claims with annotations
Appeal
Dec 7, 2021
Amended claims with annotations
Appeal
Dec 7, 2021
Amended claims with annotations
Appeal
Dec 7, 2021
Amended claims with annotations
Appeal
Dec 7, 2021
Amended claims with annotations
Appeal
Dec 7, 2021
Amended claims with annotations
Appeal
Dec 7, 2021
Auxiliary request during appeals procedure - 01
Appeal
Dec 7, 2021
Auxiliary request during appeals procedure - 02
Appeal
Dec 7, 2021
Auxiliary request during appeals procedure - 03
Appeal
Dec 7, 2021
Auxiliary request during appeals procedure - 04
Appeal
Dec 7, 2021
Auxiliary request during appeals procedure - 05
Appeal
Dec 7, 2021
Auxiliary request during appeals procedure - 06
Appeal
Dec 7, 2021
Auxiliary request during appeals procedure - 07
Appeal
Dec 7, 2021
Auxiliary request during appeals procedure - 08
Appeal
Dec 7, 2021
Auxiliary request during appeals procedure - 09
Appeal
Dec 7, 2021
Auxiliary request during appeals procedure - 10
Appeal
Dec 7, 2021
Letter accompanying subsequently filed items
OPPO
Dec 7, 2021
Letter accompanying subsequently filed items
Appeal
Dec 7, 2021
Letter accompanying subsequently filed items
Appeal
Dec 7, 2021
Letter relating to Appeal Procedure
Appeal
Dec 7, 2021
Non-Patent Literature cited during the appeal procedure
Appeal
Dec 7, 2021
Statement of grounds of appeal
Appeal
Dec 7, 2021
Statement of grounds of appeal
Appeal
Oct 12, 2021
F3204 Communication of the file number to the parties
Appeal
Oct 12, 2021
F3204 Communication of the file number to the parties
Appeal
Oct 8, 2021
F3204 Communication of the file number to the parties
Appeal
Oct 8, 2021
F3204 Communication of the file number to the parties
Appeal
Oct 7, 2021
(Electronic) Receipt
Appeal
Oct 7, 2021
Letter accompanying subsequently filed items
Appeal
Oct 7, 2021
Notice of appeal
Appeal
Oct 1, 2021
(Electronic) Receipt
Appeal
Oct 1, 2021
Letter accompanying subsequently filed items
Appeal
Oct 1, 2021
Notice of appeal
Appeal
Aug 2, 2021
Advice of delivery
OPPO
Aug 2, 2021
Advice of delivery
OPPO
Jul 28, 2021
Annex to the communication - opposition
OPPO
Jul 28, 2021
Decision of the Opposition Division and instruction
OPPO
Jul 28, 2021
Druckexemplar in opposition procedure
OPPO
Jul 28, 2021
Grounds for the decision (Annex) - opposition
OPPO
Jul 28, 2021
Interlocutory decision in opposition proceedings
OPPO
Jul 28, 2021
Interlocutory decision in opposition proceedings
OPPO
Jul 28, 2021
Means of redress
OPPO
Jul 28, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
OPPO
Jul 28, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
OPPO
Jul 28, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
OPPO
Jul 28, 2021
Provision of a copy of the minutes - opposition procedure
OPPO
Jul 28, 2021
Provision of a copy of the minutes - opposition procedure
OPPO
Jul 28, 2021
Scanned annex to a communication - opposition procedure
OPPO
Jul 28, 2021
Transmittal of decision / summons - opposition
OPPO
Jul 28, 2021
Transmittal of decision / summons - opposition
OPPO
May 27, 2021
Information about the result of oral proceedings
OPPO
Apr 7, 2021
Annex to the communication - opposition
OPPO
Apr 7, 2021
Notification concerning the date of oral proceedings
OPPO
Apr 7, 2021
Notification concerning the date of oral proceedings
OPPO
Apr 1, 2021
Brief communication - Opposition proceedings
OPPO
Mar 26, 2021
(Electronic) Receipt
OPPO
Mar 26, 2021
Auxiliary request during Opposition procedure
OPPO
Mar 26, 2021
Auxiliary request during Opposition procedure
OPPO
Mar 26, 2021
Auxiliary request during Opposition procedure
OPPO
Mar 26, 2021
Auxiliary request during Opposition procedure
OPPO
Mar 26, 2021
Auxiliary request during Opposition procedure
OPPO
Mar 26, 2021
Auxiliary request during Opposition procedure
OPPO
Mar 26, 2021
Auxiliary request during Opposition procedure - 01
OPPO
Mar 26, 2021
Auxiliary request during Opposition procedure - 02
OPPO
Mar 26, 2021
Auxiliary request during Opposition procedure - 03
OPPO
Mar 26, 2021
Auxiliary request during Opposition procedure - 04
OPPO
Mar 26, 2021
Auxiliary request during Opposition procedure - 05
OPPO
Mar 26, 2021
Auxiliary request during Opposition procedure - 06
OPPO
Mar 26, 2021
Letter accompanying subsequently filed items
OPPO
Mar 26, 2021
Written submission in preparation to/during oral proceedings
OPPO
Feb 22, 2021
Notification concerning the date of oral proceedings
OPPO
Feb 22, 2021
Notification concerning the date of oral proceedings
OPPO
Oct 21, 2020
Advice of delivery
OPPO
Oct 20, 2020
Advice of delivery
OPPO
Oct 16, 2020
Acknowledgement of a document
OPPO
Oct 16, 2020
Acknowledgement of a document
OPPO
Oct 16, 2020
Annex to the communication - opposition
OPPO
Oct 16, 2020
Information concerning oral proceedings
OPPO
Oct 16, 2020
Summons to attend oral proceedings
OPPO
Oct 16, 2020
Summons to attend oral proceedings
OPPO
Aug 28, 2020
Brief communication - Opposition proceedings
OPPO
Aug 28, 2020
Brief communication - Opposition proceedings
OPPO
Aug 28, 2020
Notification concerning the date of oral proceedings
OPPO
Aug 28, 2020
Notification concerning the date of oral proceedings
OPPO
Aug 14, 2020
(Electronic) Receipt
OPPO
Aug 14, 2020
Citation in opposition procedure - 007
OPPO
Aug 14, 2020
Consolidated list of cited opposition documents
OPPO
Aug 14, 2020
Letter accompanying subsequently filed items
OPPO
Aug 14, 2020
Oral proceedings: reply to date proposed
OPPO
Aug 14, 2020
Written submission in preparation to/during oral proceedings
OPPO
Aug 10, 2020
(Electronic) Receipt
OPPO
Aug 10, 2020
Letter accompanying subsequently filed items
OPPO
Aug 10, 2020
Oral proceedings: reply to date proposed
OPPO
Jul 15, 2020
Notification concerning the date of oral proceedings
OPPO
Jul 15, 2020
Notification concerning the date of oral proceedings
OPPO
Mar 26, 2020
Advice of delivery
OPPO
Mar 25, 2020
Advice of delivery
OPPO
Mar 23, 2020
Acknowledgement of a document
OPPO
Mar 23, 2020
Acknowledgement of a document
OPPO
Mar 23, 2020
Annex to the communication - opposition
OPPO
Mar 23, 2020
Information concerning oral proceedings
OPPO
Mar 23, 2020
Scanned annex to a communication - opposition procedure
OPPO
Mar 23, 2020
Summons to attend oral proceedings
OPPO
Mar 23, 2020
Summons to attend oral proceedings
OPPO
Nov 7, 2019
Brief communication - Opposition proceedings
OPPO
Nov 4, 2019
(Electronic) Receipt
OPPO
Nov 4, 2019
Any annexes (other than citation) to an opposition letter
OPPO
Nov 4, 2019
Letter accompanying subsequently filed items
OPPO
Nov 4, 2019
Reply of the patent proprietor to the notice(s) of opposition
OPPO
Aug 2, 2019
Brief communication - Opposition proceedings
OPPO
Jul 29, 2019
(Electronic) Receipt
OPPO
Jul 29, 2019
Citation in opposition procedure - 001
OPPO
Jul 29, 2019
Citation in opposition procedure - 002
OPPO
Jul 29, 2019
Letter accompanying subsequently filed items
OPPO
Jul 29, 2019
Letter regarding the opposition procedure (no time limit)
OPPO
Jun 24, 2019
Communication of a notice of opposition and request to file observations
OPPO
Jun 24, 2019
Notice of further oppositions to opponent(s)
OPPO
Jun 24, 2019
Request for documents
OPPO
Jun 13, 2019
(Electronic) Receipt
OPPO
Jun 13, 2019
Letter accompanying subsequently filed items
OPPO
Jun 13, 2019
Letter regarding the opposition procedure (no time limit)
OPPO
Jun 11, 2019
Communication of a notice of opposition - first information to patent proprietor
OPPO
May 29, 2019
(Electronic) Receipt
OPPO
May 29, 2019
Citation in opposition procedure - 001
OPPO
May 29, 2019
Citation in opposition procedure - 002
OPPO
May 29, 2019
Citation in opposition procedure - 003
OPPO
May 29, 2019
Citation in opposition procedure - 004
OPPO
May 29, 2019
Citation in opposition procedure - 005
OPPO
May 29, 2019
Citation in opposition procedure - 006
OPPO
May 29, 2019
International publication (Pamphlet)
OPPO
May 29, 2019
International publication (Pamphlet)
OPPO
May 29, 2019
Notice of opposition
OPPO
May 29, 2019
Notice of opposition
OPPO
May 29, 2019
Priority document
OPPO
Sep 10, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Search/Exam
Aug 2, 2018
Decision to grant a European patent
Search/Exam
Jul 17, 2018
(Electronic) Receipt
Search/Exam
Jul 17, 2018
Filing of the translations of the claims
Search/Exam
Jul 17, 2018
French translation of claims
Search/Exam
Jul 17, 2018
German translation of the claims
Search/Exam
Jul 17, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 6, 2018
Bibliographic data of the European patent application
Search/Exam
Apr 6, 2018
Communication about intention to grant a European patent
Search/Exam
Apr 6, 2018
Intention to grant (signatures)
Search/Exam
Apr 6, 2018
Text intended for grant (clean copy)
Search/Exam
Apr 6, 2018
Text intended for grant (version for approval)
Search/Exam
Dec 22, 2017
(Electronic) Receipt
Search/Exam
Dec 22, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 22, 2017
Reply to communication from the Examining Division
Search/Exam
Aug 14, 2017
Annex to the communication
Search/Exam
Aug 14, 2017
Communication from the Examining Division
Search/Exam
Aug 7, 2017
Examination started
Search/Exam
May 19, 2017
Acknowledgement of receipt of third party observations
Search/Exam
May 19, 2017
Transmittal of third party observations to applicant
Search/Exam
May 15, 2017
(Electronic) Receipt
Search/Exam
May 15, 2017
Letter accompanying subsequently filed items
Search/Exam
May 15, 2017
Observations by third parties
Search/Exam
May 19, 2016
(Electronic) Receipt
Search/Exam
May 19, 2016
Amended claims filed after receipt of (European) search report
Search/Exam
May 19, 2016
Amended claims with annotations
Search/Exam
May 19, 2016
Amended description filed after receipt of (European) search report
Search/Exam
May 19, 2016
Amended description with annotations
Search/Exam
May 19, 2016
Amendments received before examination
Search/Exam
May 19, 2016
Letter accompanying subsequently filed items
Search/Exam
Nov 20, 2015
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Search/Exam
Nov 4, 2015
Communication regarding the transmission of the European search report
Search/Exam
Nov 4, 2015
European search opinion
Search/Exam
Nov 4, 2015
Supplementary European search report
Search/Exam
Oct 27, 2015
Search started
Search/Exam
Oct 1, 2014
Notification of forthcoming publication
Search/Exam
Sep 26, 2014
Submission concerning representation
Search/Exam
Jul 25, 2014
Communication to designated inventor
Search/Exam
Jul 25, 2014
Communication to designated inventor
Search/Exam
Jul 25, 2014
Communication to designated inventor
Search/Exam
Jul 3, 2014
(Electronic) Receipt
Search/Exam
Jul 3, 2014
Abstract
Search/Exam
Jul 3, 2014
Claims
Search/Exam
Jul 3, 2014
Copy of the international preliminary report on patentability
Search/Exam
Jul 3, 2014
Description
Search/Exam
Jul 3, 2014
Drawings
Search/Exam
Jul 3, 2014
Request for entry into the European phase
Search/Exam
Jul 3, 2014
Translation of the international preliminary report on patentability
Search/Exam
Jun 16, 2014
Letter which had not been notified
Search/Exam
May 6, 2014
Information on entry into European phase
Search/Exam
Jul 17, 2013
Priority document (electronically transmitted)
Search/Exam
Jun 27, 2013
Copy of the international search report
Search/Exam
Jun 27, 2013
Copy of the translated international search report
Search/Exam
Jun 27, 2013
International publication pamphlet
Search/Exam