Blast Furnace Operation Method

Patent No. EP2796566 (titled "Blast Furnace Operation Method") was filed by JFE Steel on Mar 1, 2012. The application was issued on Jul 23, 2025.

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
PAUL WURTH	May 29, 2019	OFFICE FREYLINGER

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

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

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Blast Furnace Operation Method

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Dossier Documents

EP2796566