Hot Work Tool Material And Method For Manufacturing Hot Work Tool

Patent No. EP3150735 (titled "Hot Work Tool Material And Method For Manufacturing Hot Work Tool") was filed by Hitachi Metals on May 26, 2015. The application was issued on Jan 15, 2020.

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	Oct 13, 2020	AERA

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

Get instant alerts for new documents

Dec 10, 2025
Brief communication - Opposition proceedings
Dec 9, 2025
Communication concerning the filing of a power of attorney
Dec 9, 2025
Communication of amended entries
Dec 3, 2025
(Electronic) Receipt
Dec 3, 2025
Letter accompanying subsequently filed items
Dec 3, 2025
Miscellaneous requests concerning client data
Nov 6, 2025
Communication concerning signing of documents
Oct 30, 2025
(Electronic) Receipt
Oct 30, 2025
Authorisation
Oct 30, 2025
Request for change of opponent's representative
Jun 3, 2025
Brief communication - Opposition proceedings
May 23, 2025
(Electronic) Receipt
May 23, 2025
Amended description with annotations
May 23, 2025
Clean copy of description pages in the opposition procedure
May 23, 2025
Letter accompanying subsequently filed items
May 23, 2025
Reply to an examination report in opposition proceedings
Feb 27, 2025
Annex to the communication - opposition
Feb 27, 2025
Brief communication - Opposition proceedings
Feb 27, 2025
Brief communication - Opposition proceedings
Feb 27, 2025
Communication inviting the parties to file observations
Feb 27, 2025
Communication inviting the parties to file observations
Nov 19, 2024
Decision of the Board of Appeal
Nov 19, 2024
F3032 Notification(s) of the decision
Nov 19, 2024
F3032 Notification(s) of the decision
Sep 16, 2024
F3013 Oral Proceedings: Forwarding minutes
Sep 16, 2024
F3013 Oral Proceedings: Forwarding minutes
Sep 16, 2024
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Aug 29, 2024
(Electronic) Receipt
Aug 29, 2024
Authorisation
Aug 29, 2024
Letter accompanying subsequently filed items
Aug 7, 2024
F3345 Forwarding of submissions to parties
Aug 5, 2024
Communication of amended entries in the Register of European Patents
Jul 31, 2024
(Electronic) Receipt
Jul 31, 2024
Citation in appeal procedure - 025
Jul 31, 2024
Letter accompanying subsequently filed items
Jul 31, 2024
Letter dealing with oral proceedings during the appeal procedure
Apr 11, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Apr 11, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Nov 20, 2023
Advice of delivery
Nov 13, 2023
Communication about missing proof of delivery
Oct 9, 2023
F3011.2 Oral Proceedings: Summons VICO
Oct 9, 2023
F3011.2 Oral Proceedings: Summons VICO
Oct 4, 2023
F3010 Oral proceedings: order for summons
Feb 17, 2023
F3345 Forwarding of submissions to parties
Feb 13, 2023
(Electronic) Receipt
Feb 13, 2023
Auxiliary request during appeals procedure - 01
Feb 13, 2023
Auxiliary request during appeals procedure - 02
Feb 13, 2023
Letter accompanying subsequently filed items
Feb 13, 2023
Reply to appeal
Oct 14, 2022
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Oct 10, 2022
(Electronic) Receipt
Oct 10, 2022
Citation in appeal procedure - 004
Oct 10, 2022
Citation in appeal procedure - 005
Oct 10, 2022
Citation in appeal procedure - 006
Oct 10, 2022
Citation in appeal procedure - 009
Oct 10, 2022
Citation in appeal procedure - 010
Oct 10, 2022
Citation in appeal procedure - 011
Oct 10, 2022
Citation in appeal procedure - 013
Oct 10, 2022
Citation in appeal procedure - 014
Oct 10, 2022
Citation in appeal procedure - 015
Oct 10, 2022
Citation in appeal procedure - 017
Oct 10, 2022
Citation in appeal procedure - 020
Oct 10, 2022
Citation in appeal procedure - 023
Oct 10, 2022
Citation in appeal procedure - 024
Oct 10, 2022
Letter accompanying subsequently filed items
Oct 10, 2022
Statement of grounds of appeal
Aug 25, 2022
F3204 Communication of the file number to the parties
Aug 25, 2022
F3204 Communication of the file number to the parties
Aug 22, 2022
Composition of the board (T)
Aug 19, 2022
(Electronic) Receipt
Aug 19, 2022
Letter accompanying subsequently filed items
Aug 19, 2022
Notice of appeal
Jun 27, 2022
(Electronic) Receipt
Jun 27, 2022
Advice of delivery
Jun 27, 2022
Letter accompanying subsequently filed items
Jun 15, 2022
Advice of delivery
Jun 10, 2022
Annex to the communication - opposition
Jun 10, 2022
Citation in opposition procedure - 021
Jun 10, 2022
Citation in opposition procedure - 022
Jun 10, 2022
Decision of the Opposition Division and instruction
Jun 10, 2022
Druckexemplar in opposition procedure
Jun 10, 2022
Grounds for the decision (Annex) - opposition
Jun 10, 2022
Interlocutory decision in opposition proceedings
Jun 10, 2022
Interlocutory decision in opposition proceedings
Jun 10, 2022
Means of redress
Jun 10, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jun 10, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jun 10, 2022
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jun 10, 2022
Provision of a copy of the minutes - opposition procedure
Jun 10, 2022
Provision of a copy of the minutes - opposition procedure
Jun 10, 2022
Scanned annex to a communication - opposition procedure
Jun 10, 2022
Transmittal of decision / summons - opposition
Jun 10, 2022
Transmittal of decision / summons - opposition
Mar 29, 2022
Information about the result of oral proceedings
Mar 11, 2022
Brief communication - Opposition proceedings
Mar 11, 2022
Brief communication - Opposition proceedings
Feb 17, 2022
(Electronic) Receipt
Feb 17, 2022
Letter accompanying subsequently filed items
Feb 2, 2022
Brief communication - Opposition proceedings
Jan 27, 2022
(Electronic) Receipt
Jan 27, 2022
Citation in opposition procedure - 018
Jan 27, 2022
Citation in opposition procedure - 019
Jan 27, 2022
Citation in opposition procedure - 020
Jan 27, 2022
Consolidated list of cited opposition documents
Jan 27, 2022
Letter accompanying subsequently filed items
Jan 27, 2022
Written submission in preparation to/during oral proceedings
Dec 22, 2021
Notification concerning the date of oral proceedings
Dec 22, 2021
Notification concerning the date of oral proceedings
Dec 2, 2021
Brief communication - Opposition proceedings
Dec 2, 2021
Communication of amended entries
Nov 26, 2021
(Electronic) Receipt
Nov 26, 2021
Letter accompanying subsequently filed items (CDR)
Nov 26, 2021
Request for change of opponent's representative
Nov 9, 2021
(Electronic) Receipt
Nov 9, 2021
Advice of delivery
Nov 9, 2021
Letter accompanying subsequently filed items
Nov 9, 2021
Letter accompanying subsequently filed items (CDR)
Nov 9, 2021
Request for change of opponent's representative
Oct 8, 2021
Advice of delivery
Sep 30, 2021
Annex to the communication - opposition
Sep 30, 2021
Information concerning oral proceedings
Sep 30, 2021
Summons to attend oral proceedings
Sep 30, 2021
Summons to attend oral proceedings
Sep 30, 2021
Transmittal of decision / summons - opposition
Sep 30, 2021
Transmittal of decision / summons - opposition
Aug 10, 2021
Brief communication - Opposition proceedings
Aug 3, 2021
(Electronic) Receipt
Aug 3, 2021
Letter accompanying subsequently filed items
Aug 3, 2021
Letter regarding the opposition procedure (no time limit)
Mar 29, 2021
Brief communication - Opposition proceedings
Mar 29, 2021
Brief communication - Opposition proceedings
Mar 22, 2021
(Electronic) Receipt
Mar 22, 2021
Citation in opposition procedure - 017
Mar 22, 2021
Letter accompanying subsequently filed items
Mar 22, 2021
Letter regarding the opposition procedure (no time limit)
Mar 3, 2021
(Electronic) Receipt
Mar 3, 2021
Auxiliary request during Opposition procedure - 01
Mar 3, 2021
Auxiliary request during Opposition procedure - 02
Mar 3, 2021
Auxiliary request during Opposition procedure - 03
Mar 3, 2021
Auxiliary request during Opposition procedure - 04
Mar 3, 2021
Auxiliary request during Opposition procedure - 05
Mar 3, 2021
Auxiliary request during Opposition procedure - 06
Mar 3, 2021
Letter accompanying subsequently filed items
Mar 3, 2021
Reply of the patent proprietor to the notice(s) of opposition
Oct 29, 2020
Brief communication - Opposition proceedings
Oct 29, 2020
Communication of a notice of opposition and request to file observations
Oct 29, 2020
Notice of further oppositions to opponent(s)
Oct 21, 2020
(Electronic) Receipt
Oct 21, 2020
Citation in opposition procedure - 016
Oct 21, 2020
Letter accompanying subsequently filed items
Oct 21, 2020
Letter regarding the opposition procedure (no time limit)
Oct 16, 2020
Communication of a notice of opposition - first information to patent proprietor
Oct 13, 2020
(Electronic) Receipt
Oct 13, 2020
Citation in opposition procedure - 001
Oct 13, 2020
Citation in opposition procedure - 002
Oct 13, 2020
Citation in opposition procedure - 003
Oct 13, 2020
Citation in opposition procedure - 004
Oct 13, 2020
Citation in opposition procedure - 005
Oct 13, 2020
Citation in opposition procedure - 006
Oct 13, 2020
Citation in opposition procedure - 007
Oct 13, 2020
Citation in opposition procedure - 008
Oct 13, 2020
Citation in opposition procedure - 009
Oct 13, 2020
Citation in opposition procedure - 010
Oct 13, 2020
Citation in opposition procedure - 011
Oct 13, 2020
Citation in opposition procedure - 012
Oct 13, 2020
Citation in opposition procedure - 013
Oct 13, 2020
Citation in opposition procedure - 014
Oct 13, 2020
Citation in opposition procedure - 015
Oct 13, 2020
Notice of opposition
Oct 13, 2020
Notice of opposition
Jan 27, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Dec 19, 2019
Decision to grant a European patent
Oct 17, 2019
Request for a change to the title of the invention
Oct 7, 2019
Submission concerning representation
Oct 4, 2019
(Electronic) Receipt
Oct 4, 2019
Filing of the translations of the claims
Oct 4, 2019
French translation of claims
Oct 4, 2019
German translation of the claims
Oct 4, 2019
Letter accompanying subsequently filed items
Jul 19, 2019
Bibliographic data of the European patent application
Jul 19, 2019
Communication about intention to grant a European patent
Jul 19, 2019
Intention to grant (signatures)
Jul 19, 2019
Text intended for grant (clean copy)
Jul 19, 2019
Text intended for grant (version for approval)
Apr 2, 2019
(Electronic) Receipt
Apr 2, 2019
Amended claims with annotations
Apr 2, 2019
Claims
Apr 2, 2019
Letter accompanying subsequently filed items
Apr 2, 2019
Reply to communication from the Examining Division
Dec 3, 2018
Annex to the communication
Dec 3, 2018
Consultation by telephone/in person (with time limit)
Dec 3, 2018
Result of consultation by telephone/in person
Nov 27, 2018
Examination started
Jun 6, 2018
(Electronic) Receipt
Jun 6, 2018
Amended claims filed after receipt of (European) search report
Jun 6, 2018
Amended claims with annotations
Jun 6, 2018
Amended description filed after receipt of (European) search report
Jun 6, 2018
Amended description with annotations
Jun 6, 2018
Amendments received before examination
Jun 6, 2018
Letter accompanying subsequently filed items
Nov 30, 2017
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Nov 13, 2017
Communication regarding the transmission of the European search report
Nov 13, 2017
European search opinion
Nov 13, 2017
Information on Search Strategy
Nov 13, 2017
Supplementary European search report
Oct 26, 2017
Search started
Jun 13, 2017
(Electronic) Receipt
Jun 13, 2017
Amended claims filed after receipt of (European) search report
Jun 13, 2017
Amended claims with annotations
Jun 13, 2017
Amendments received before examination
Jun 13, 2017
Letter accompanying subsequently filed items
Mar 8, 2017
Notification of forthcoming publication
Jan 20, 2017
Communication regarding possible amendment of the application/payment of claims fee
Jan 18, 2017
Communication to designated inventor
Dec 12, 2016
Copy of the international preliminary report on patentability
Dec 12, 2016
Translation of the international preliminary report on patentability
Aug 24, 2016
Information regarding early processing
Jul 29, 2016
(Electronic) Receipt
Jul 29, 2016
Abstract
Jul 29, 2016
Claims
Jul 29, 2016
Description
Jul 29, 2016
Drawings
Jul 29, 2016
Request for entry into the European phase
Feb 2, 2016
Notification of the recording of a change
Dec 23, 2015
Priority document (electronically transmitted)
Dec 3, 2015
Copy of the international search report
Dec 3, 2015
Copy of the translated international search report
Dec 3, 2015
International publication pamphlet

EP3150735

HITACHI METALS

Application Number: EP15799707A
Filing Date: May 26, 2015
Status: Granted And Under Opposition; Dec 13, 2019
Publication Date: Jan 15, 2020
External Links: Slate, Register , Google Patents

IP Verse

Hot Work Tool Material And Method For Manufacturing Hot Work Tool

Patent Summary

Patent Family

Patent Oppositions

Dossier Documents

EP3150735