Hot Work Tool Steel Having Excellent Toughness, And Process Of Producing Same

Patent No. EP2682491 (titled "Hot Work Tool Steel Having Excellent Toughness, And Process Of Producing Same") was filed by Hitachi Metals on Feb 28, 2012. The application was issued on Jul 4, 2018.

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
UDDEHOLMS	Jan 29, 2019	NORENS PATENTBYRA

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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Aug 21, 2025
Letter relating to the revocation of the automatic debiting procedure
Oct 2, 2024
Request for change of client data cannot be registered anymore
Sep 30, 2024
(Electronic) Receipt
Sep 30, 2024
Authorisation
Sep 30, 2024
Request for change of opponent's representative
Jul 16, 2024
Decision of the Board of Appeal
Jul 16, 2024
F3032 Notification(s) of the decision
Jul 16, 2024
F3032 Notification(s) of the decision
May 6, 2024
F3013 Oral Proceedings: Forwarding minutes
May 6, 2024
F3013 Oral Proceedings: Forwarding minutes
May 6, 2024
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Apr 4, 2024
F3345 Forwarding of submissions to parties
Mar 27, 2024
Letter dealing with oral proceedings during the appeal procedure
Feb 9, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Feb 9, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Aug 17, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Aug 17, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Aug 2, 2023
F3345 Forwarding of submissions to parties
Jul 27, 2023
Letter dealing with oral proceedings
Jul 14, 2023
Advice of delivery
Jul 10, 2023
F3011.2 Oral Proceedings: Summons VICO
Jul 10, 2023
F3011.2 Oral Proceedings: Summons VICO
Jul 5, 2023
F3010 Oral proceedings: order for summons
Feb 6, 2023
Document concerning representation
Feb 6, 2023
Letter accompanying subsequently filed items
Nov 17, 2022
F3345 Forwarding of submissions to parties
Nov 11, 2022
(Electronic) Receipt
Nov 11, 2022
Letter accompanying subsequently filed items
Nov 11, 2022
Reply to appeal
Aug 11, 2022
Composition of the board (T)
Jul 13, 2022
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Jul 7, 2022
(Electronic) Receipt
Jul 7, 2022
Citation in appeal procedure - 001
Jul 7, 2022
Citation in appeal procedure - 001
Jul 7, 2022
Citation in appeal procedure - 002
Jul 7, 2022
Citation in appeal procedure - 003
Jul 7, 2022
Citation in appeal procedure - 004
Jul 7, 2022
Citation in appeal procedure - 005
Jul 7, 2022
Citation in appeal procedure - 006
Jul 7, 2022
Citation in appeal procedure - 007
Jul 7, 2022
Citation in appeal procedure - 008
Jul 7, 2022
Citation in appeal procedure - 009
Jul 7, 2022
Citation in appeal procedure - 010
Jul 7, 2022
Citation in appeal procedure - 011
Jul 7, 2022
Citation in appeal procedure - 011
Jul 7, 2022
Citation in appeal procedure - 011
Jul 7, 2022
Citation in appeal procedure - 011
Jul 7, 2022
Citation in appeal procedure - 012
Jul 7, 2022
Citation in appeal procedure - 012
Jul 7, 2022
Citation in appeal procedure - 012
Jul 7, 2022
Citation in appeal procedure - 012
Jul 7, 2022
Citation in appeal procedure - 013
Jul 7, 2022
Citation in appeal procedure - 014
Jul 7, 2022
Citation in appeal procedure - 015
Jul 7, 2022
Citation in appeal procedure - 016
Jul 7, 2022
Citation in appeal procedure - 017
Jul 7, 2022
Citation in appeal procedure - 018
Jul 7, 2022
Letter accompanying subsequently filed items
Jul 7, 2022
Statement of grounds of appeal
May 24, 2022
F3204 Communication of the file number to the parties
May 17, 2022
(Electronic) Receipt
May 17, 2022
Letter accompanying subsequently filed items
May 17, 2022
Notice of appeal
Mar 10, 2022
Advice of delivery
Mar 9, 2022
Advice of delivery
Mar 7, 2022
Annex to the communication - opposition
Mar 7, 2022
Decision of the Opposition Division and instruction
Mar 7, 2022
Druckexemplar in opposition procedure
Mar 7, 2022
Grounds for the decision (Annex) - opposition
Mar 7, 2022
Interlocutory decision in opposition proceedings
Mar 7, 2022
Interlocutory decision in opposition proceedings
Mar 7, 2022
Interlocutory decision in opposition proceedings
Mar 7, 2022
Means of redress
Mar 7, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 7, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 7, 2022
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Mar 7, 2022
Provision of a copy of the minutes - opposition procedure
Mar 7, 2022
Provision of a copy of the minutes - opposition procedure
Mar 7, 2022
Scanned annex to a communication - opposition procedure
Mar 7, 2022
Transmittal of decision / summons - opposition
Mar 7, 2022
Transmittal of decision / summons - opposition
Jan 13, 2022
Information about the result of oral proceedings
Dec 3, 2021
Brief communication - Opposition proceedings
Dec 3, 2021
Brief communication - Opposition proceedings
Dec 3, 2021
Communication of amended entries
Nov 30, 2021
(Electronic) Receipt
Nov 30, 2021
Letter accompanying subsequently filed items
Nov 19, 2021
(Electronic) Receipt
Nov 19, 2021
Brief communication - Opposition proceedings
Nov 19, 2021
Letter accompanying subsequently filed items (CDR)
Nov 19, 2021
Request for change of opponent's representative
Nov 12, 2021
(Electronic) Receipt
Nov 12, 2021
Letter accompanying subsequently filed items
Nov 12, 2021
Written submission in preparation to/during oral proceedings
Nov 11, 2021
(Electronic) Receipt
Nov 11, 2021
Letter accompanying subsequently filed items
Nov 11, 2021
Written submission in preparation to/during oral proceedings
Nov 9, 2021
Letter accompanying subsequently filed items (CDR)
Nov 9, 2021
Request for change of opponent's representative
Nov 2, 2021
Notification concerning the date of oral proceedings
Nov 2, 2021
Notification concerning the date of oral proceedings
Mar 30, 2021
Brief communication - Opposition proceedings
Mar 25, 2021
(Electronic) Receipt
Mar 25, 2021
Letter accompanying subsequently filed items
Mar 25, 2021
Written submission in preparation to/during oral proceedings
Mar 15, 2021
Advice of delivery
Mar 4, 2021
(Electronic) Receipt
Mar 4, 2021
Advice of delivery
Mar 4, 2021
Letter accompanying subsequently filed items
Mar 3, 2021
Annex to the communication - opposition
Mar 3, 2021
Information concerning oral proceedings
Mar 3, 2021
Summons to attend oral proceedings
Mar 3, 2021
Summons to attend oral proceedings
Mar 3, 2021
Transmittal of decision / summons - opposition
Mar 3, 2021
Transmittal of decision / summons - opposition
Nov 10, 2020
Brief communication - Opposition proceedings
Nov 9, 2020
Notification concerning the date of oral proceedings
Nov 9, 2020
Notification concerning the date of oral proceedings
Nov 6, 2020
Notification concerning the date of oral proceedings
Nov 6, 2020
Notification concerning the date of oral proceedings
Nov 2, 2020
(Electronic) Receipt
Nov 2, 2020
Letter accompanying subsequently filed items
Nov 2, 2020
Written submission in preparation to/during oral proceedings
Oct 1, 2020
Brief communication - Opposition proceedings
Sep 25, 2020
(Electronic) Receipt
Sep 25, 2020
Letter accompanying subsequently filed items
Sep 25, 2020
Patent document cited during the opposition procedure
Sep 25, 2020
Written submission in preparation to/during oral proceedings
Sep 24, 2020
Brief communication - Opposition proceedings
Sep 21, 2020
(Electronic) Receipt
Sep 21, 2020
Letter accompanying subsequently filed items
Sep 21, 2020
Oral proceedings: reply to date proposed
Jul 20, 2020
Notification concerning the date of oral proceedings
Jul 20, 2020
Notification concerning the date of oral proceedings
Mar 25, 2020
Brief communication - Opposition proceedings
Mar 25, 2020
Brief communication - Opposition proceedings
Mar 17, 2020
(Electronic) Receipt
Mar 17, 2020
Letter accompanying subsequently filed items
Mar 17, 2020
Written submission in preparation to/during oral proceedings
Mar 13, 2020
(Electronic) Receipt
Mar 13, 2020
Citation in opposition procedure - 013
Mar 13, 2020
Citation in opposition procedure - 014
Mar 13, 2020
Citation in opposition procedure - 015
Mar 13, 2020
Citation in opposition procedure - 016
Mar 13, 2020
Letter accompanying subsequently filed items
Mar 13, 2020
Written submission in preparation to/during oral proceedings
Jan 20, 2020
(Electronic) Receipt
Jan 20, 2020
Advice of delivery
Jan 20, 2020
Letter accompanying subsequently filed items
Jan 14, 2020
Advice of delivery
Jan 7, 2020
Acknowledgement of a document
Jan 7, 2020
Acknowledgement of a document
Jan 7, 2020
Annex to the communication - opposition
Jan 7, 2020
Information concerning oral proceedings
Jan 7, 2020
Summons to attend oral proceedings
Jan 7, 2020
Summons to attend oral proceedings
Oct 7, 2019
Submission concerning representation
Oct 4, 2019
Brief communication - Opposition proceedings
Sep 26, 2019
(Electronic) Receipt
Sep 26, 2019
Letter accompanying subsequently filed items
Sep 26, 2019
Letter regarding the opposition procedure (no time limit)
Sep 6, 2019
Brief communication - Opposition proceedings
Sep 3, 2019
(Electronic) Receipt
Sep 3, 2019
Brief communication - Opposition proceedings
Sep 3, 2019
Letter accompanying subsequently filed items
Sep 3, 2019
Rejection of request for extension of time limit
Sep 3, 2019
Rejection of request for extension of time limit
Sep 3, 2019
Reply of the patent proprietor to the notice(s) of opposition
Aug 28, 2019
(Electronic) Receipt
Aug 28, 2019
Letter accompanying subsequently filed items
Aug 28, 2019
Request for extension of time limit
Apr 18, 2019
Communication of a notice of opposition and request to file observations
Apr 18, 2019
Notice of further oppositions to opponent(s)
Mar 29, 2019
Brief communication - Opposition proceedings
Mar 26, 2019
(Electronic) Receipt
Mar 26, 2019
Citation in opposition procedure - 001
Mar 26, 2019
Citation in opposition procedure - 003
Mar 26, 2019
Citation in opposition procedure - 004
Mar 26, 2019
Citation in opposition procedure - 005
Mar 26, 2019
Citation in opposition procedure - 006
Mar 26, 2019
Citation in opposition procedure - 007
Mar 26, 2019
Citation in opposition procedure - 008
Mar 26, 2019
Citation in opposition procedure - 009
Mar 26, 2019
Letter accompanying subsequently filed items
Mar 26, 2019
Letter regarding the opposition procedure (no time limit)
Mar 19, 2019
(Electronic) Receipt
Mar 19, 2019
Citation in opposition procedure - 011
Mar 19, 2019
Citation in opposition procedure - 011
Mar 19, 2019
Citation in opposition procedure - 011
Mar 19, 2019
Citation in opposition procedure - 011
Mar 19, 2019
Citation in opposition procedure - 012
Mar 19, 2019
Citation in opposition procedure - 012
Mar 19, 2019
Citation in opposition procedure - 012
Mar 19, 2019
Citation in opposition procedure - 012
Mar 19, 2019
Letter accompanying subsequently filed items
Mar 19, 2019
Letter regarding the opposition procedure (no time limit)
Feb 7, 2019
Request for documents
Feb 4, 2019
Communication of a notice of opposition - first information to patent proprietor
Jan 29, 2019
(Electronic) Receipt
Jan 29, 2019
Citation in opposition procedure - 002
Jan 29, 2019
Citation in opposition procedure - 003
Jan 29, 2019
Citation in opposition procedure - 010
Jan 29, 2019
Notice of opposition
Jan 29, 2019
Notice of opposition
Jul 16, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jun 7, 2018
Decision to grant a European patent
Jun 1, 2018
Communication of the registration of a transfer or change of name and/or address
May 11, 2018
(Electronic) Receipt
May 11, 2018
French translation of claims
May 11, 2018
German translation of the claims
May 11, 2018
Letter accompanying subsequently filed items
May 11, 2018
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Feb 2, 2018
Bibliographic data of the European patent application
Feb 2, 2018
Communication about intention to grant a European patent
Feb 2, 2018
Intention to grant (signatures)
Feb 2, 2018
Text intended for grant (clean copy)
Feb 2, 2018
Text intended for grant (version for approval)
Oct 6, 2017
(Electronic) Receipt
Oct 6, 2017
Amended claims with annotations
Oct 6, 2017
Amended description with annotations
Oct 6, 2017
Claims
Oct 6, 2017
Description
Oct 6, 2017
Letter accompanying subsequently filed items
Oct 6, 2017
Reply to communication from the Examining Division
Jun 20, 2017
Annex to the communication
Jun 20, 2017
Communication from the Examining Division
May 29, 2017
Examination started
Feb 22, 2017
Notification regarding date of start of examination with possibility to withdraw
Oct 6, 2015
(Electronic) Receipt
Oct 6, 2015
Amended claims filed after receipt of (European) search report
Oct 6, 2015
Amended claims with annotations
Oct 6, 2015
Amendments received before examination
Oct 6, 2015
Letter accompanying subsequently filed items
Mar 27, 2015
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Mar 11, 2015
Communication regarding the transmission of the European search report
Mar 11, 2015
European search opinion
Mar 11, 2015
Supplementary European search report
Mar 2, 2015
Search started
Jan 2, 2015
Submission concerning representation
Dec 11, 2013
Notification of forthcoming publication
Oct 18, 2013
Communication regarding possible amendment of the application/payment of claims fee
Oct 16, 2013
Communication to designated inventor
Oct 16, 2013
Communication to designated inventor
Oct 1, 2013
Copy of the international preliminary report on patentability
Sep 24, 2013
Translation of the international preliminary report on patentability
Aug 29, 2013
(Electronic) Receipt
Aug 29, 2013
Abstract
Aug 29, 2013
Claims
Aug 29, 2013
Description
Aug 29, 2013
Drawings
Aug 29, 2013
Request for entry into the European phase
Jul 12, 2013
Information on entry into European phase
Sep 24, 2012
Priority document (electronically transmitted)
Sep 24, 2012
Priority document (electronically transmitted)
Sep 7, 2012
Copy of the international search report
Sep 7, 2012
Copy of the translated international search report
Sep 7, 2012
International publication pamphlet

EP2682491

HITACHI METALS

Application Number: EP12752790A
Filing Date: Feb 28, 2012
Status: Revoked; Jul 31, 2024
Publication Date: Jul 4, 2018
External Links: Slate, Register , Google Patents

IP Verse

Hot Work Tool Steel Having Excellent Toughness, And Process Of Producing Same

Patent Summary

Patent Family

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Dossier Documents

EP2682491