Heat Treatment Method And Heat Treatment Device

Patent No. EP3414350 (titled "Heat Treatment Method And Heat Treatment Device") was filed by Schwartz on Jan 25, 2017. The application was issued on Mar 5, 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
GEDIA GEBRDER DINGERKUS	Dec 2, 2025	KCHLING
GEDIA GEBRUDER DINGERKUS	Dec 2, 2025	KOCHLING

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 12, 2026
Brief communication - Opposition proceedings
Jun 12, 2026
Communication of amended entries
Jun 9, 2026
(Electronic) Receipt
Jun 9, 2026
Authorisation
Jun 9, 2026
Letter accompanying subsequently filed items
Jun 9, 2026
Request for change of opponent's representative
Jun 8, 2026
Annex to the communication - opposition
Jun 8, 2026
Information concerning oral proceedings
Jun 8, 2026
Scanned annex to a communication - opposition procedure
Jun 8, 2026
Summons to attend oral proceedings
Jun 8, 2026
Summons to attend oral proceedings
Apr 22, 2026
Brief communication - Opposition proceedings
Apr 16, 2026
(Electronic) Receipt
Apr 16, 2026
Auxiliary request during Opposition procedure
Apr 16, 2026
Auxiliary request during Opposition procedure
Apr 16, 2026
Auxiliary request during Opposition procedure
Apr 16, 2026
Auxiliary request during Opposition procedure - 01
Apr 16, 2026
Auxiliary request during Opposition procedure - 02
Apr 16, 2026
Auxiliary request during Opposition procedure - 03
Apr 16, 2026
Letter accompanying subsequently filed items
Apr 16, 2026
Reply of the patent proprietor to the notice(s) of opposition
Dec 19, 2025
Communication of a notice of opposition and request to file observations
Dec 19, 2025
Notice of further oppositions to opponent(s)
Dec 8, 2025
Communication of a notice of opposition - first information to patent proprietor
Dec 2, 2025
(Electronic) Receipt
Dec 2, 2025
Authorisation
Dec 2, 2025
Citation in opposition procedure - 001
Dec 2, 2025
Citation in opposition procedure - 002
Dec 2, 2025
Citation in opposition procedure - 003
Dec 2, 2025
Citation in opposition procedure - 004
Dec 2, 2025
Citation in opposition procedure - 005
Dec 2, 2025
Citation in opposition procedure - 006
Dec 2, 2025
Citation in opposition procedure - 007
Dec 2, 2025
Citation in opposition procedure - 008
Dec 2, 2025
Consolidated list of cited opposition documents
Dec 2, 2025
Notice of opposition
Dec 2, 2025
Notice of opposition
Mar 18, 2025
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Feb 6, 2025
Decision to grant a European patent
Jan 7, 2025
(Electronic) Receipt
Jan 7, 2025
English translation of the claims
Jan 7, 2025
Filing of the translations of the claims
Jan 7, 2025
French translation of claims
Sep 17, 2024
Annex to the communication about intention to grant a European patent
Sep 17, 2024
Bibliographic data of the European patent application
Sep 17, 2024
Communication about intention to grant a European patent
Sep 17, 2024
Intention to grant (signatures)
Sep 17, 2024
Text intended for grant (clean copy)
Sep 17, 2024
Text intended for grant (version for approval)
Jul 15, 2024
(Electronic) Receipt
Jul 15, 2024
Amended claims with annotations
Jul 15, 2024
Claims
Jul 15, 2024
Letter accompanying subsequently filed items
Jul 15, 2024
Reply to communication from the Examining Division
May 22, 2024
Annex to the communication
May 22, 2024
Communication from the Examining Division
May 7, 2024
Response to enquiry for communication from the Examining Division
Apr 24, 2024
(Electronic) Receipt
Apr 24, 2024
Enquiry as to the processing of the file
Apr 24, 2024
Letter accompanying subsequently filed items
Apr 13, 2023
(Electronic) Receipt
Apr 13, 2023
Amended claims with annotations
Apr 13, 2023
Amended description with annotations
Apr 13, 2023
Claims
Apr 13, 2023
Description
Apr 13, 2023
Letter accompanying subsequently filed items
Apr 13, 2023
Reply to communication from the Examining Division
Mar 1, 2023
Annex to the communication
Mar 1, 2023
Communication from the Examining Division
Sep 19, 2022
Response to enquiry for communication from the Examining Division
Sep 6, 2022
(Electronic) Receipt
Sep 6, 2022
Enquiry as to the processing of the file
Sep 6, 2022
Letter accompanying subsequently filed items
Mar 4, 2021
(Electronic) Receipt
Mar 4, 2021
Amended claims with annotations
Mar 4, 2021
Claims
Mar 4, 2021
Letter accompanying subsequently filed items
Mar 4, 2021
Reply to communication from the Examining Division
Nov 4, 2020
Annex to the communication
Nov 4, 2020
Communication from the Examining Division
Jul 7, 2020
(Electronic) Receipt
Jul 7, 2020
Amended claims with annotations
Jul 7, 2020
Claims
Jul 7, 2020
Letter accompanying subsequently filed items
Jul 7, 2020
Reply to communication from the Examining Division
Apr 3, 2020
Annex to the communication
Apr 3, 2020
Communication from the Examining Division
Mar 27, 2020
Examination started
Jan 13, 2020
Document concerning representation
May 28, 2019
(Electronic) Receipt
May 28, 2019
Letter accompanying subsequently filed items
May 28, 2019
Priority search results
May 9, 2019
Invitation to file a copy of search results(priority)
Mar 14, 2019
(Electronic) Receipt
Mar 14, 2019
Amended claims filed after receipt of (European) search report
Mar 14, 2019
Amended claims with annotations
Mar 14, 2019
Amended description filed after receipt of (European) search report
Mar 14, 2019
Amended description with annotations
Mar 14, 2019
Amendments received before examination
Mar 14, 2019
Letter accompanying subsequently filed items
Nov 21, 2018
Notification on forthcoming publication of bibliographic data
Sep 18, 2018
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Sep 14, 2018
Communication to designated inventor
Sep 14, 2018
Communication to designated inventor
Sep 14, 2018
Communication to designated inventor
Aug 29, 2018
Copy of the international preliminary report on patentability
Aug 21, 2018
(Electronic) Receipt
Aug 21, 2018
Request for entry into the European phase
Jun 22, 2018
Information on entry into European phase
Sep 5, 2017
Priority document (electronically transmitted)
Aug 17, 2017
Copy of the international search report
Aug 17, 2017
Copy of the international search report
Aug 17, 2017
Published international application - A1
May 8, 2017
ISR: cited documents
May 8, 2017
International Search Report - copy in English for the IB
May 4, 2017
Written opinion of the ISA, boxes No. I to VIII
May 4, 2017
Written opinion of the ISA, cover sheet
May 4, 2017
Written opinion of the ISA, supplemental box
Apr 13, 2017
Incoming letter related to PCT RO
Feb 20, 2017
Notification of receipt of Search copy
Feb 6, 2017
Notification of the international application number and of the international filing date
Feb 1, 2017
Request form for international application (copy for ISA/EP)
Jan 25, 2017
(Electronic) Receipt
Jan 25, 2017
Abstract
Jan 25, 2017
Claims
Jan 25, 2017
Description
Jan 25, 2017
Document concerning fees and payments
Jan 25, 2017
Drawings
Jan 25, 2017
Electronic request for grant of an International application

EP3414350

SCHWARTZ

Application Number: EP17703347A
Filing Date: Jan 25, 2017
Status: Granted And Under Opposition; Jan 31, 2025
Publication Date: Mar 5, 2025
External Links: Slate, Register , Google Patents

IP Verse

Heat Treatment Method And Heat Treatment Device

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP3414350