Induction Heating Device And Induction Heating Method

Patent No. EP3439430 (titled "Induction Heating Device And Induction Heating Method") was filed by Nippon Steel on Mar 30, 2016. The application was issued on Aug 23, 2023.

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
SMS GROUP	May 22, 2024	RICHLY & RITSCHEL PATENTANWALTE PARTG MBB

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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Jan 2, 2026
Annex to the communication - opposition
Jan 2, 2026
Brief communication - Opposition proceedings
Jan 2, 2026
Brief communication - Opposition proceedings
Jan 2, 2026
Decision of the Opposition Division and instruction
Jan 2, 2026
Decision revoking the European patent
Jan 2, 2026
Decision revoking the European patent
Jan 2, 2026
Grounds for the decision (Annex) - opposition
Jan 2, 2026
Means of redress
Jan 2, 2026
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jan 2, 2026
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jan 2, 2026
Provision of a copy of the minutes - opposition procedure
Jan 2, 2026
Provision of a copy of the minutes - opposition procedure
Jan 2, 2026
Scanned annex to a communication - opposition procedure
Jan 2, 2026
Scanned annex to a communication - opposition procedure
Dec 3, 2025
Information about the result of oral proceedings
Dec 2, 2025
Brief communication - Opposition proceedings
Dec 1, 2025
(Electronic) Receipt
Dec 1, 2025
Letter accompanying subsequently filed items
Dec 1, 2025
Written submission in preparation to/during oral proceedings
Oct 6, 2025
Brief communication - Opposition proceedings
Oct 2, 2025
(Electronic) Receipt
Oct 2, 2025
Auxiliary request during Opposition procedure
Oct 2, 2025
Auxiliary request during Opposition procedure - 04
Oct 2, 2025
Brief communication - Opposition proceedings
Oct 2, 2025
Letter accompanying subsequently filed items
Oct 2, 2025
Written submission in preparation to/during oral proceedings
Oct 1, 2025
(Electronic) Receipt
Oct 1, 2025
Auxiliary request during Opposition procedure
Oct 1, 2025
Auxiliary request during Opposition procedure
Oct 1, 2025
Auxiliary request during Opposition procedure
Oct 1, 2025
Auxiliary request during Opposition procedure
Oct 1, 2025
Auxiliary request during Opposition procedure
Oct 1, 2025
Auxiliary request during Opposition procedure
Oct 1, 2025
Auxiliary request during Opposition procedure
Oct 1, 2025
Auxiliary request during Opposition procedure - 01
Oct 1, 2025
Auxiliary request during Opposition procedure - 02
Oct 1, 2025
Auxiliary request during Opposition procedure - 03
Oct 1, 2025
Auxiliary request during Opposition procedure - 04
Oct 1, 2025
Auxiliary request during Opposition procedure - 05
Oct 1, 2025
Auxiliary request during Opposition procedure - 06
Oct 1, 2025
Auxiliary request during Opposition procedure - 07
Oct 1, 2025
Letter accompanying subsequently filed items
Oct 1, 2025
Written submission in preparation to/during oral proceedings
Sep 25, 2025
Brief communication - Opposition proceedings
Sep 23, 2025
(Electronic) Receipt
Sep 23, 2025
Brief communication - Opposition proceedings
Sep 23, 2025
Letter accompanying subsequently filed items
Sep 23, 2025
Request for interpreters during oral proceedings
Sep 23, 2025
Written submission in preparation to/during oral proceedings
Sep 22, 2025
(Electronic) Receipt
Sep 22, 2025
Letter accompanying subsequently filed items
Sep 22, 2025
Written submission in preparation to/during oral proceedings
Apr 23, 2025
Annex to the communication - opposition
Apr 23, 2025
Information concerning oral proceedings
Apr 23, 2025
Scanned annex to a communication - opposition procedure
Apr 23, 2025
Summons to attend oral proceedings
Apr 23, 2025
Summons to attend oral proceedings
Apr 15, 2025
Notification concerning the date of oral proceedings
Apr 15, 2025
Notification concerning the date of oral proceedings
Mar 12, 2025
Brief communication - Opposition proceedings
Mar 11, 2025
(Electronic) Receipt
Mar 11, 2025
Letter accompanying subsequently filed items
Mar 11, 2025
Written submission in preparation to/during oral proceedings
Mar 6, 2025
Brief communication - Opposition proceedings
Mar 5, 2025
(Electronic) Receipt
Mar 5, 2025
Any annexes (other than citation) to an opposition letter
Mar 5, 2025
Letter accompanying subsequently filed items
Mar 5, 2025
Oral proceedings: Request for postponement
Mar 4, 2025
Annex to the communication - opposition
Mar 4, 2025
Brief communication - Opposition proceedings
Mar 4, 2025
Information concerning oral proceedings
Mar 4, 2025
Scanned annex to a communication - opposition procedure
Mar 4, 2025
Summons to attend oral proceedings
Mar 4, 2025
Summons to attend oral proceedings
Feb 27, 2025
(Electronic) Receipt
Feb 27, 2025
Letter accompanying subsequently filed items
Feb 27, 2025
Letter regarding the opposition procedure (no time limit)
Jan 27, 2025
Brief communication - Opposition proceedings
Jan 22, 2025
(Electronic) Receipt
Jan 22, 2025
Letter accompanying subsequently filed items
Jan 22, 2025
Letter regarding the opposition procedure (no time limit)
Oct 11, 2024
Brief communication - Opposition proceedings
Oct 7, 2024
(Electronic) Receipt
Oct 7, 2024
Letter accompanying subsequently filed items
Oct 7, 2024
Reply of the patent proprietor to the notice(s) of opposition
Jun 7, 2024
Communication of a notice of opposition and request to file observations
Jun 7, 2024
Notice of further oppositions to opponent(s)
Jun 4, 2024
Brief communication - Opposition proceedings
May 27, 2024
Communication of a notice of opposition - first information to patent proprietor
May 22, 2024
(Electronic) Receipt
May 22, 2024
Any annexes (other than citation) to an opposition letter
May 22, 2024
Citation in opposition procedure - 001
May 22, 2024
Citation in opposition procedure - 002
May 22, 2024
Citation in opposition procedure - 003
May 22, 2024
Citation in opposition procedure - 005
May 22, 2024
Citation in opposition procedure - 006
May 22, 2024
Citation in opposition procedure - 007
May 22, 2024
Citation in opposition procedure - 008
May 22, 2024
Citation in opposition procedure - 009
May 22, 2024
Citation in opposition procedure - 010
May 22, 2024
Citation in opposition procedure - 011
May 22, 2024
Citation in opposition procedure - 012
May 22, 2024
Citation in opposition procedure - 013
May 22, 2024
Citation in opposition procedure - 014
May 22, 2024
Consolidated list of cited opposition documents
May 22, 2024
Notice of opposition
May 22, 2024
Notice of opposition
Sep 5, 2023
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 27, 2023
Decision to grant a European patent
Jul 13, 2023
(Electronic) Receipt
Jul 13, 2023
Filing of the translations of the claims
Jul 13, 2023
French translation of claims
Jul 13, 2023
German translation of the claims
Jul 13, 2023
Letter accompanying subsequently filed items
Jul 7, 2023
Annex to the communication about intention to grant a European patent
Jul 7, 2023
Bibliographic data of the European patent application
Jul 7, 2023
Communication about intention to grant a European patent
Jul 7, 2023
Intention to grant (signatures)
Jul 7, 2023
Text intended for grant (clean copy)
Jul 7, 2023
Text intended for grant (version for approval)
Jun 12, 2023
(Electronic) Receipt
Jun 12, 2023
Amended claims with annotations
Jun 12, 2023
Claims
Jun 12, 2023
Letter accompanying subsequently filed items
Jun 12, 2023
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Feb 22, 2023
Annex to the communication about intention to grant a European patent
Feb 22, 2023
Bibliographic data of the European patent application
Feb 22, 2023
Communication about intention to grant a European patent
Feb 22, 2023
Intention to grant (signatures)
Feb 22, 2023
Text intended for grant (clean copy)
Feb 22, 2023
Text intended for grant (version for approval)
Feb 3, 2021
(Electronic) Receipt
Feb 3, 2021
Amended claims with annotations
Feb 3, 2021
Amended claims with annotations
Feb 3, 2021
Amended claims with annotations
Feb 3, 2021
Amended description with annotations
Feb 3, 2021
Claims
Feb 3, 2021
Claims
Feb 3, 2021
Claims
Feb 3, 2021
Description
Feb 3, 2021
Letter accompanying subsequently filed items
Feb 3, 2021
Reply to communication from the Examining Division
Oct 9, 2020
Annex to the communication
Oct 9, 2020
Communication from the Examining Division
Oct 5, 2020
Examination started
Apr 23, 2020
(Electronic) Receipt
Apr 23, 2020
Amended claims filed after receipt of (European) search report
Apr 23, 2020
Amended claims with annotations
Apr 23, 2020
Amendments received before examination
Apr 23, 2020
Letter accompanying subsequently filed items
Nov 12, 2019
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Oct 22, 2019
Communication regarding the transmission of the European search report
Oct 22, 2019
European search opinion
Oct 22, 2019
Information on Search Strategy
Oct 22, 2019
Supplementary European search report
Oct 14, 2019
Search started
Jun 3, 2019
Communication of the registration of a transfer or change of name and/or address
May 20, 2019
Submission concerning change of applicant's name
Feb 21, 2019
Amended description filed after receipt of (European) search report
Feb 21, 2019
Amended description with annotations
Feb 21, 2019
Amendments received before examination
Jan 9, 2019
Notification of forthcoming publication
Nov 7, 2018
Communication regarding possible amendment of the application/payment of claims fee
Nov 5, 2018
Communication to designated inventor
Nov 5, 2018
Communication to designated inventor
Oct 16, 2018
Copy of the international preliminary report on patentability
Oct 16, 2018
Translation of the international preliminary report on patentability
Aug 3, 2018
Information regarding early processing
Jul 19, 2018
(Electronic) Receipt
Jul 19, 2018
Abstract
Jul 19, 2018
Claims
Jul 19, 2018
Description
Jul 19, 2018
Drawings
Jul 19, 2018
Request for entry into the European phase
Oct 5, 2017
Copy of the international search report
Oct 5, 2017
Copy of the translated international search report
Oct 5, 2017
International publication pamphlet

EP3439430

NIPPON STEEL

Application Number: EP16896858A
Filing Date: Mar 30, 2016
Status: Granted And Under Opposition; Jul 21, 2023
Publication Date: Aug 23, 2023
External Links: Slate, Register , Google Patents

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Induction Heating Device And Induction Heating Method

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Dossier Documents

EP3439430