System And Method For Thermally Treatment Of Air-Dispersible Raw Material

Patent No. EP4247767 (titled "System And Method For Thermally Treatment Of Air-Dispersible Raw Material") was filed by Thyssenkrupp on Feb 4, 2022. The application was issued on Jan 17, 2024.

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
IKN INGENIEURBURO KUHLERBAU NEUSTADT	Oct 17, 2024	LOHR

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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Nov 28, 2025
Decision to discontinue the opposition proceedings
Nov 25, 2025
Brief communication - Opposition proceedings
Nov 25, 2025
Brief communication - Opposition proceedings
Nov 20, 2025
(Electronic) Receipt
Nov 20, 2025
Letter accompanying subsequently filed items
Nov 20, 2025
Withdrawal of an opposition
Jul 4, 2025
Annex to the communication - opposition
Jul 4, 2025
Information concerning oral proceedings
Jul 4, 2025
Scanned annex to a communication - opposition procedure
Jul 4, 2025
Summons to attend oral proceedings
Jul 4, 2025
Summons to attend oral proceedings
Mar 4, 2025
Brief communication - Opposition proceedings
Feb 27, 2025
(Electronic) Receipt
Feb 27, 2025
Letter accompanying subsequently filed items
Feb 27, 2025
Reply of the patent proprietor to the notice(s) of opposition
Jan 2, 2025
Brief communication - Opposition proceedings
Dec 19, 2024
(Electronic) Receipt
Dec 19, 2024
Citation in opposition procedure - 006
Dec 19, 2024
Letter accompanying subsequently filed items
Dec 19, 2024
Letter regarding the opposition procedure (no time limit)
Oct 31, 2024
Communication of a notice of opposition and request to file observations
Oct 31, 2024
Notice of further oppositions to opponent(s)
Oct 25, 2024
Request for documents
Oct 23, 2024
Communication of a notice of opposition - first information to patent proprietor
Oct 17, 2024
(Electronic) Receipt
Oct 17, 2024
Citation in opposition procedure - 001
Oct 17, 2024
Citation in opposition procedure - 002
Oct 17, 2024
Citation in opposition procedure - 003
Oct 17, 2024
Citation in opposition procedure - 004
Oct 17, 2024
Citation in opposition procedure - 005
Oct 17, 2024
Citation in opposition procedure - 006
Oct 17, 2024
Citation in opposition procedure - 007
Oct 17, 2024
Citation in opposition procedure - 008
Oct 17, 2024
Citation in opposition procedure - 009
Oct 17, 2024
Citation in opposition procedure - 010
Oct 17, 2024
Citation in opposition procedure - 011
Oct 17, 2024
Citation in opposition procedure - 012
Oct 17, 2024
Citation in opposition procedure - 013
Oct 17, 2024
Citation in opposition procedure - 014
Oct 17, 2024
Citation in opposition procedure - 015
Oct 17, 2024
Citation in opposition procedure - 016
Oct 17, 2024
Consolidated list of cited opposition documents
Oct 17, 2024
Notice of opposition
Oct 17, 2024
Notice of opposition
Jan 30, 2024
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Dec 21, 2023
Decision to grant a European patent
Oct 30, 2023
(Electronic) Receipt
Oct 30, 2023
English translation of the claims
Oct 30, 2023
French translation of claims
Oct 30, 2023
Letter accompanying subsequently filed items
Oct 24, 2023
Annex to the communication about intention to grant a European patent
Oct 24, 2023
Bibliographic data of the European patent application
Oct 24, 2023
Communication about intention to grant a European patent
Oct 24, 2023
Intention to grant (signatures)
Oct 24, 2023
Text intended for grant (clean copy)
Oct 24, 2023
Text intended for grant (version for approval)
Sep 8, 2023
Examination started
Sep 4, 2023
Communication of the registration of a transfer or change of name and/or address
Aug 30, 2023
Notification on forthcoming publication of bibliographic data
Aug 29, 2023
Annexes in respect of a client data request
Aug 29, 2023
Annexes in respect of a client data request
Aug 29, 2023
Annexes in respect of a client data request
Aug 29, 2023
Annexes in respect of a client data request
Aug 29, 2023
Annexes in respect of a client data request
Aug 29, 2023
Letter accompanying subsequently filed items
Aug 29, 2023
Submission concerning a transfer of rights (applicant)
Aug 23, 2023
Communication for party to proceedings/third party
Aug 21, 2023
Annexes to the international preliminary examination report
Aug 21, 2023
Copy of the international preliminary examination report
Aug 17, 2023
Notification of the recording of a change
Aug 17, 2023
Notification of the recording of a change
Aug 17, 2023
Notification of the recording of a change
Aug 17, 2023
Notification of the recording of a change
Jul 10, 2023
(Electronic) Receipt
Jul 10, 2023
Letter accompanying subsequently filed items
Jul 10, 2023
Statement of non-availability of priority search results
Jul 6, 2023
Invitation to file a copy of search results(priority)
Jun 29, 2023
Confirmation of effective date of early entry
Jun 24, 2023
Priority search results copy provided by EPO
Jun 23, 2023
Information on entry into European phase
Jun 19, 2023
(Electronic) Receipt
Jun 19, 2023
Amended claims filed after receipt of (European) search report
Jun 19, 2023
Amended claims with annotations
Jun 19, 2023
Amended description filed after receipt of (European) search report
Jun 19, 2023
Amended description with annotations
Jun 19, 2023
Amendments received before examination
Jun 19, 2023
Letter concerning search matters
Jun 19, 2023
Request for entry into the European phase
Jun 5, 2023
Annex to International preliminary examination report
Jun 5, 2023
Annexes to the international preliminary examination report
Jun 5, 2023
Copy of the international preliminary examination report
Jun 5, 2023
International preliminary examination report
Jun 5, 2023
International preliminary examination report - free text sheet
Jun 5, 2023
International preliminary examination report - points I-VIII
Jun 5, 2023
Transmittal of International Preliminary Examination Report
Jan 11, 2023
(Electronic) Receipt
Jan 11, 2023
Letter regarding PCTII procedure
Jan 11, 2023
PCT(IPEA): Amended sheet - claims
Jan 11, 2023
PCT(IPEA): Amended sheet - claims
Jan 11, 2023
Reply to communication PCT/IPEA/408
Dec 21, 2022
Written opinion
Dec 21, 2022
Written opinion - free text sheet
Dec 21, 2022
Written opinion - points I-VIII
Dec 1, 2022
Notification of election of EPO
Nov 17, 2022
Amendments of documents (Article 19 PCT) (without attachments)
Nov 14, 2022
Notification of receipt of demand
Nov 8, 2022
(Electronic) Receipt
Nov 8, 2022
PCT demand form
Nov 8, 2022
PCT(IPEA): Amended sheet - claims
Nov 8, 2022
PCT(IPEA): Amended sheet - claims
Nov 8, 2022
PCT(IPEA): Amended sheet - description
Nov 8, 2022
PCT(IPEA): Amended sheet - description
Nov 8, 2022
Payment of fees and costs
Nov 8, 2022
Reply to International Search Opinion
Sep 5, 2022
Priority document (electronically transmitted)
Sep 5, 2022
Priority document (electronically transmitted)
Aug 18, 2022
Copy of the international search report
Aug 18, 2022
Copy of the international search report
Aug 18, 2022
Published international application - A1
May 16, 2022
Notification of refund of search fee
May 11, 2022
ISR: cited documents
May 11, 2022
International Search Report - copy in English for the IB
May 11, 2022
Written opinion of the ISA, boxes No. I to VIII
May 11, 2022
Written opinion of the ISA, cover sheet
May 11, 2022
Written opinion of the ISA, supplemental box
Apr 12, 2022
Notification of receipt of Search copy
Feb 24, 2022
Notification of the international application number and of the international filing date
Feb 21, 2022
Request form for international application (copy for ISA/EP)
Feb 4, 2022
(Electronic) Receipt
Feb 4, 2022
Abstract
Feb 4, 2022
Claims
Feb 4, 2022
Description
Feb 4, 2022
Document concerning fees and payments
Feb 4, 2022
Drawings
Feb 4, 2022
Electronic request for grant of an International application
Feb 4, 2022
Incoming communication concerning PCT Direct

EP4247767

THYSSENKRUPP

Application Number: EP22713299A
Filing Date: Feb 4, 2022
Status: Granted And Under Opposition; Dec 15, 2023
Publication Date: Jan 17, 2024
External Links: Slate, Register , Google Patents

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System And Method For Thermally Treatment Of Air-Dispersible Raw Material

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Dossier Documents

EP4247767