Method And Device For The Variothermal Temperature Control Of Injection Moulds

Patent No. EP3661720 (titled "Method And Device For The Variothermal Temperature Control Of Injection Moulds") was filed by Kraussmaffei on Jul 9, 2018. The application was issued on May 21, 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
SURFACE GENERATION	Jun 7, 2022	SANGER

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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Apr 25, 2025
Decision to maintain the European patent in amended form
Apr 25, 2025
Decision to maintain the European patent in amended form
Apr 16, 2025
(Electronic) Receipt
Apr 16, 2025
English translation of the claims
Apr 16, 2025
Filing of the translation of the amended claims
Apr 16, 2025
French translation of claims
Apr 16, 2025
Letter accompanying subsequently filed items
Feb 26, 2025
Communication of bibliographic data
Feb 26, 2025
Communication to opponent concerning maintenance
Feb 26, 2025
Communication with request to file translations
Feb 20, 2025
Maintenance of the patent with the documents specified in the final decision
Nov 22, 2024
Decision of the Opposition Division and instruction
Nov 20, 2024
Brief communication - Opposition proceedings
Nov 20, 2024
Brief communication - Opposition proceedings
Nov 20, 2024
Druckexemplar in opposition procedure
Nov 20, 2024
Grounds for the decision (Annex) - opposition
Nov 20, 2024
Interlocutory decision in opposition proceedings
Nov 20, 2024
Interlocutory decision in opposition proceedings
Nov 20, 2024
Means of redress
Nov 20, 2024
Scanned annex to a communication - opposition procedure
Nov 20, 2024
Scanned annex to a communication - opposition procedure
Nov 20, 2024
Scanned annex to a communication - opposition procedure
Oct 29, 2024
Notification concerning the date of oral proceedings
Oct 29, 2024
Notification concerning the date of oral proceedings
Oct 28, 2024
Brief communication - Opposition proceedings
Oct 25, 2024
(Electronic) Receipt
Oct 25, 2024
Brief communication - Opposition proceedings
Oct 25, 2024
Letter accompanying subsequently filed items
Oct 25, 2024
Withdrawal of a request for oral proceedings
Oct 24, 2024
(Electronic) Receipt
Oct 24, 2024
Amended description with annotations
Oct 24, 2024
Description
Oct 24, 2024
Letter accompanying subsequently filed items
Oct 24, 2024
Written submission in preparation to/during oral proceedings
Oct 23, 2024
Brief communication - Opposition proceedings
Oct 18, 2024
(Electronic) Receipt
Oct 18, 2024
Amended description with annotations
Oct 18, 2024
Description
Oct 18, 2024
Letter accompanying subsequently filed items
Oct 18, 2024
Withdrawal of a request for oral proceedings
Oct 14, 2024
Brief communication - Opposition proceedings
Oct 9, 2024
Result of consultation by telephone/in person
Oct 8, 2024
Brief communication - Opposition proceedings
Oct 1, 2024
(Electronic) Receipt
Oct 1, 2024
(Electronic) Receipt
Oct 1, 2024
Letter accompanying subsequently filed items
Oct 1, 2024
Letter accompanying subsequently filed items
Oct 1, 2024
Request for interpreters during oral proceedings
Oct 1, 2024
Written submission in preparation to/during oral proceedings
Sep 30, 2024
Brief communication - Opposition proceedings
Sep 30, 2024
Brief communication - Opposition proceedings
Mar 25, 2024
Annex to the communication - opposition
Mar 25, 2024
Brief communication - Opposition proceedings
Mar 25, 2024
Brief communication - Opposition proceedings
Mar 25, 2024
Information concerning oral proceedings
Mar 25, 2024
Summons to attend oral proceedings
Mar 25, 2024
Summons to attend oral proceedings
Mar 18, 2024
Scanned annex to a communication - opposition procedure
Oct 19, 2022
Brief communication - Opposition proceedings
Oct 14, 2022
(Electronic) Receipt
Oct 14, 2022
Letter accompanying subsequently filed items
Oct 14, 2022
Main request during Opposition procedure
Oct 14, 2022
Main request during Opposition procedure
Oct 14, 2022
Reply of the patent proprietor to the notice(s) of opposition
Jun 23, 2022
Communication of a notice of opposition and request to file observations
Jun 23, 2022
Notice of further oppositions to opponent(s)
Jun 14, 2022
Communication of a notice of opposition - first information to patent proprietor
Jun 7, 2022
(Electronic) Receipt
Jun 7, 2022
Citation in opposition procedure - 001
Jun 7, 2022
Citation in opposition procedure - 002
Jun 7, 2022
Citation in opposition procedure - 003
Jun 7, 2022
Citation in opposition procedure - 004
Jun 7, 2022
Citation in opposition procedure - 005
Jun 7, 2022
Citation in opposition procedure - 006
Jun 7, 2022
Citation in opposition procedure - 007
Jun 7, 2022
Consolidated list of cited opposition documents
Jun 7, 2022
Letter accompanying subsequently filed items
Jun 7, 2022
Notice of opposition
Jun 7, 2022
Notice of opposition
Sep 21, 2021
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Aug 12, 2021
Decision to grant a European patent
Jun 22, 2021
Communication regarding the forthcoming grant
Jun 17, 2021
(Electronic) Receipt
Jun 17, 2021
English translation of the claims
Jun 17, 2021
Filing of the translations of the claims
Jun 17, 2021
French translation of claims
Jun 17, 2021
Letter accompanying subsequently filed items
Mar 16, 2021
Annex to the communication about intention to grant a European patent
Mar 16, 2021
Bibliographic data of the European patent application
Mar 16, 2021
Communication about intention to grant a European patent
Mar 16, 2021
Text intended for grant (clean copy)
Mar 16, 2021
Text intended for grant (version for approval)
Mar 15, 2021
Intention to grant (signatures)
Feb 5, 2021
Examination started
Nov 25, 2020
Acknowledgement of receipt of third party observations
Nov 25, 2020
Transmittal of third party observations to applicant
Nov 20, 2020
(Electronic) Receipt
Nov 20, 2020
Letter accompanying subsequently filed items
Nov 20, 2020
Observations by third parties
Nov 19, 2020
(Electronic) Receipt
Nov 19, 2020
Letter accompanying subsequently filed items
Nov 19, 2020
Priority search results
Nov 19, 2020
Reply to invitation to file a copy of priority search results
Oct 30, 2020
Invitation to file a copy of search results(priority)
Sep 1, 2020
(Electronic) Receipt
Sep 1, 2020
Amendments received before examination
Sep 1, 2020
Letter accompanying subsequently filed items
May 13, 2020
Notification on forthcoming publication of bibliographic data
Mar 13, 2020
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Mar 12, 2020
Copy of the international search report
Mar 12, 2020
Copy of the international search report
Mar 12, 2020
Published international application - A9
Mar 10, 2020
Communication to designated inventor
Mar 10, 2020
Communication to designated inventor
Feb 28, 2020
Result of consultation by telephone/in person
Feb 11, 2020
Annexes to the international preliminary examination report
Feb 11, 2020
Copy of the international preliminary examination report
Jan 31, 2020
Communication in cases for which no other form is applicable
Jan 31, 2020
Communication in cases for which no other form is applicable
Jan 21, 2020
(Electronic) Receipt
Jan 21, 2020
Request for entry into the European phase
Dec 13, 2019
Information on entry into European phase
Nov 20, 2019
Free text
Nov 13, 2019
(Electronic) Receipt
Oct 21, 2019
Annex to International preliminary examination report
Oct 21, 2019
International preliminary examination report
Oct 21, 2019
International preliminary examination report - free text sheet
Oct 21, 2019
International preliminary examination report - points I-VIII
Oct 21, 2019
Transmittal of International Preliminary Examination Report
Jul 15, 2019
(Electronic) Receipt
Jul 15, 2019
Annex
Jul 15, 2019
Letter regarding PCTII procedure
Jul 15, 2019
PCT(IPEA): Amended sheet - claims
Jul 15, 2019
PCT(IPEA): Amended sheet - claims
Jul 15, 2019
PCT(IPEA): Amended sheet - description
Jul 15, 2019
PCT(IPEA): Amended sheet - description
Jul 15, 2019
PCT(IPEA): Amended sheet - drawings
Jul 15, 2019
Reply to communication PCT/IPEA/408
Jul 2, 2019
Notification of election of EPO
Jun 25, 2019
Written opinion
Jun 25, 2019
Written opinion - free text sheet
Jun 25, 2019
Written opinion - points I-VIII
Jun 19, 2019
Amendments of documents (Article 19 PCT) (without attachments)
Jun 11, 2019
Notification of receipt of demand
Jun 3, 2019
(Electronic) Receipt
Jun 3, 2019
Letter regarding PCTII procedure
Jun 3, 2019
PCT demand form
Jun 3, 2019
Reply to International Search Opinion
Feb 27, 2019
Priority document (electronically transmitted)
Feb 7, 2019
Copy of the international search report
Feb 7, 2019
Copy of the international search report
Feb 7, 2019
Published international application - A1
Aug 14, 2018
Written opinion of the ISA, boxes No. I to VIII
Aug 14, 2018
Written opinion of the ISA, cover sheet
Aug 14, 2018
Written opinion of the ISA, supplemental box
Jul 25, 2018
Notification of the international application number and of the international filing date
Jul 24, 2018
Incoming letter related to PCT RO
Jul 9, 2018
(Electronic) Receipt
Jul 9, 2018
Abstract
Jul 9, 2018
Claims
Jul 9, 2018
Description
Jul 9, 2018
Document concerning fees and payments
Jul 9, 2018
Drawings
Jul 9, 2018
Electronic request for grant of an International application

EP3661720

KRAUSSMAFFEI

Application Number: EP18739510A
Filing Date: Jul 9, 2018
Status: Patent Maintained As Amended; Apr 18, 2025
Publication Date: May 21, 2025
External Links: Slate, Register , Google Patents

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Method And Device For The Variothermal Temperature Control Of Injection Moulds

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Dossier Documents

EP3661720