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Method Of Operating A Diesel Engine With A View To Making It Easier To Regenerate A Particle Filter In The Exhaust System

Patent No. EP2134452 (titled "Method Of Operating A Diesel Engine With A View To Making It Easier To Regenerate A Particle Filter In The Exhaust System") was filed by Rhodia Operations on Feb 28, 2008. The application was issued on May 17, 2017.

Patent Summary

Patent Family

Patent Oppositions

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
INFINEUM	Feb 13, 2018	UEXKULL & STOLBERG

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 26, 2026
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jan 26, 2026
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Oct 20, 2025
Decision revoking the European Patent (patent proprietor)
Oct 20, 2025
Decision revoking the European patent (opponent)
Jul 11, 2025
Communication concerning surcharge and failure to observe time limit
Mar 4, 2025
Communication of bibliographic data
Mar 4, 2025
Communication to opponent concerning maintenance
Mar 4, 2025
Communication with request to file translations
Feb 21, 2025
Maintenance of the patent with the documents specified in the final decision
Jul 19, 2023
Advice of delivery
Jul 7, 2023
(Electronic) Receipt
Jul 7, 2023
Advice of delivery
Jul 6, 2023
Druckexemplar in opposition procedure
Jul 6, 2023
Grounds for the decision (Annex) - opposition
Jul 6, 2023
Interlocutory decision in opposition proceedings
Jul 6, 2023
Interlocutory decision in opposition proceedings
Jul 6, 2023
Means of redress
Jul 6, 2023
Transmittal of decision / summons - opposition
Jul 6, 2023
Transmittal of decision / summons - opposition
Jul 4, 2023
Decision of the Opposition Division and instruction
Feb 22, 2023
Brief communication - Opposition proceedings
Feb 22, 2023
Brief communication - Opposition proceedings
Feb 22, 2023
Communication inviting the parties to file observations
Feb 22, 2023
Communication inviting the parties to file observations
Feb 14, 2023
Brief communication - Opposition proceedings
Jan 20, 2023
(Electronic) Receipt
Jan 20, 2023
Amended description with annotations
Jan 20, 2023
Description
Jan 20, 2023
Letter accompanying subsequently filed items
Jan 20, 2023
Reply to an examination report in opposition proceedings
Sep 21, 2022
Annex to the communication - opposition
Sep 21, 2022
Brief communication - Opposition proceedings
Sep 21, 2022
Brief communication - Opposition proceedings
Sep 21, 2022
Communication inviting the parties to file observations
Sep 21, 2022
Communication inviting the parties to file observations
Jul 25, 2022
Document concerning representation
Jul 25, 2022
Letter accompanying subsequently filed items
Jun 14, 2022
Communication of the registration of a transfer or change of name and/or address
Jun 9, 2022
Letter accompanying subsequently filed items
Jun 9, 2022
Submission concerning change of proprietor's address
May 20, 2022
Document concerning representation
Mar 21, 2022
Decision of the Board of Appeal
Mar 21, 2022
F3032 Notification(s) of the decision
Mar 21, 2022
F3032 Notification(s) of the decision
Jan 31, 2022
F3013 Oral Proceedings: Forwarding minutes
Jan 31, 2022
F3013 Oral Proceedings: Forwarding minutes
Jan 31, 2022
F3317 Oral Proceedings: Minutes (Appellant: Proprietor + Opponent)
Jan 21, 2022
Brief communication - Opposition proceedings
Jan 21, 2022
Brief communication - Opposition proceedings
Jan 17, 2022
Annex to the communication - opposition
Jan 5, 2022
F3345 Forwarding of submissions to parties
Dec 21, 2021
(Electronic) Receipt
Dec 21, 2021
Letter accompanying subsequently filed items
Dec 21, 2021
Letter relating to Appeal Procedure
Nov 25, 2021
F3345 Forwarding of submissions to parties
Nov 22, 2021
(Electronic) Receipt
Nov 22, 2021
(Electronic) Receipt
Nov 22, 2021
Letter accompanying subsequently filed items
Nov 22, 2021
Letter accompanying subsequently filed items
Nov 22, 2021
Letter dealing with oral proceedings during the appeal procedure
Nov 22, 2021
Letter dealing with oral proceedings during the appeal procedure
Nov 18, 2021
Oral proceedings: change of venue
Nov 18, 2021
Oral proceedings: change of venue
Nov 17, 2021
F3345 Forwarding of submissions to parties
Nov 12, 2021
F3345 Forwarding of submissions to parties
Nov 11, 2021
(Electronic) Receipt
Nov 11, 2021
Letter accompanying subsequently filed items
Nov 11, 2021
Request for interpreters during oral proceedings
Nov 9, 2021
(Electronic) Receipt
Nov 9, 2021
Letter accompanying subsequently filed items
Nov 9, 2021
Letter dealing with oral proceedings during the appeal procedure
Oct 12, 2021
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 12, 2021
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
May 26, 2021
(Electronic) Receipt
May 26, 2021
Advice of delivery
May 26, 2021
Letter accompanying subsequently filed items
May 25, 2021
Advice of delivery
May 18, 2021
F3011.1 Oral Proceedings: summons
May 18, 2021
F3011.1 Oral Proceedings: summons
May 18, 2021
F3022 Oral proceedings: change of board composition
May 18, 2021
F3022 Oral proceedings: change of board composition
May 12, 2021
F3010 Oral proceedings: order for summons
May 12, 2021
F3303.16 Change of composition of the Board (T)
Oct 29, 2020
Communication of the registration of a transfer or change of name and/or address
Oct 29, 2020
F3345 Forwarding of submissions to parties
Oct 16, 2020
Submission concerning change of applicant's name
Oct 14, 2020
Composition of the board (T)
Aug 4, 2020
F3345 Forwarding of submissions to parties
Aug 4, 2020
F3345 Forwarding of submissions to parties
Jul 29, 2020
(Electronic) Receipt
Jul 29, 2020
(Electronic) Receipt
Jul 29, 2020
Letter accompanying subsequently filed items
Jul 29, 2020
Letter accompanying subsequently filed items
Jul 29, 2020
Reply to appeal
Jul 29, 2020
Reply to appeal
Mar 19, 2020
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Mar 19, 2020
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Mar 16, 2020
(Electronic) Receipt
Mar 16, 2020
Auxiliary request during Opposition procedure - 01
Mar 16, 2020
Claims
Mar 16, 2020
Claims
Mar 16, 2020
Letter accompanying subsequently filed items
Mar 16, 2020
Statement of grounds of appeal
Mar 13, 2020
(Electronic) Receipt
Mar 13, 2020
Letter accompanying subsequently filed items
Mar 13, 2020
Non-Patent Literature cited during the appeal procedure
Mar 13, 2020
Non-Patent Literature cited during the appeal procedure
Mar 13, 2020
Non-Patent Literature cited during the appeal procedure
Mar 13, 2020
Statement of grounds of appeal
Jan 15, 2020
Brief communication - Opposition proceedings
Jan 15, 2020
F3204 Communication of the file number to the parties
Jan 15, 2020
F3204 Communication of the file number to the parties
Jan 15, 2020
F3204 Communication of the file number to the parties
Jan 15, 2020
F3204 Communication of the file number to the parties
Jan 10, 2020
(Electronic) Receipt
Jan 10, 2020
Letter accompanying subsequently filed items
Jan 10, 2020
Notice of appeal
Dec 20, 2019
(Electronic) Receipt
Dec 20, 2019
Letter accompanying subsequently filed items
Dec 20, 2019
Notice of appeal
Dec 19, 2019
(Electronic) Receipt
Dec 19, 2019
Letter accompanying subsequently filed items
Dec 19, 2019
Request for correction
Dec 11, 2019
Advice of delivery
Nov 15, 2019
(Electronic) Receipt
Nov 15, 2019
Advice of delivery
Nov 15, 2019
Letter accompanying subsequently filed items
Nov 13, 2019
Advice of delivery
Nov 13, 2019
Advice of delivery
Nov 6, 2019
Acknowledgement of a document
Nov 6, 2019
Acknowledgement of a document
Nov 6, 2019
Annex to the communication - opposition
Nov 6, 2019
Decision of the Opposition Division and instruction
Nov 6, 2019
Druckexemplar in opposition procedure
Nov 6, 2019
Grounds for the decision (Annex) - opposition
Nov 6, 2019
Interlocutory decision in opposition proceedings
Nov 6, 2019
Internal form - Opposition/addressees
Nov 6, 2019
Internal form - Opposition/addressees
Nov 6, 2019
Means of redress
Nov 6, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 6, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 6, 2019
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Nov 6, 2019
Provision of a copy of the minutes - opposition procedure
Nov 6, 2019
Scanned annex to a communication - opposition procedure
Nov 6, 2019
Scanned annex to a communication - opposition procedure
Nov 6, 2019
Scanned annex to a communication - opposition procedure
Nov 6, 2019
Scanned annex to a communication - opposition procedure
Jun 14, 2019
Brief communication - Opposition proceedings
Jun 14, 2019
Information about the result of oral proceedings
Jun 7, 2019
(Electronic) Receipt
Jun 7, 2019
Any annexes (other than citation) to an opposition letter
Jun 7, 2019
Brief communication - Opposition proceedings
Jun 7, 2019
Letter accompanying subsequently filed items
Jun 7, 2019
Non-patent literature cited during the opposition procedure
Jun 7, 2019
Patent document cited during the opposition procedure
Jun 7, 2019
Patent document cited during the opposition procedure
Jun 7, 2019
Written submission in preparation to/during oral proceedings
Jun 3, 2019
(Electronic) Receipt
Jun 3, 2019
Letter accompanying subsequently filed items
Jun 3, 2019
Non-patent literature cited during the opposition procedure
Jun 3, 2019
Written submission in preparation to/during oral proceedings
Apr 24, 2019
Brief communication - Opposition proceedings
Apr 17, 2019
Brief communication - Opposition proceedings
Apr 12, 2019
(Electronic) Receipt
Apr 12, 2019
Letter accompanying subsequently filed items
Apr 12, 2019
Non-patent literature cited during the opposition procedure
Apr 12, 2019
Written submission in preparation to/during oral proceedings
Apr 11, 2019
(Electronic) Receipt
Apr 11, 2019
Any annexes (other than citation) to an opposition letter
Apr 11, 2019
Letter accompanying subsequently filed items
Apr 11, 2019
Written submission in preparation to/during oral proceedings
Mar 12, 2019
Brief communication - Opposition proceedings
Mar 12, 2019
Communication concerning the filing of a power of attorney
Mar 12, 2019
Communication of amended entries
Mar 11, 2019
Brief communication - Opposition proceedings
Feb 28, 2019
(Electronic) Receipt
Feb 28, 2019
Letter accompanying subsequently filed items
Feb 28, 2019
Request for interpreters during oral proceedings
Dec 11, 2018
Advice of delivery
Oct 10, 2018
Advice of delivery
Oct 8, 2018
Advice of delivery
Oct 4, 2018
Acknowledgement of a document
Oct 4, 2018
Acknowledgement of a document
Oct 4, 2018
Annex to the communication - opposition
Oct 4, 2018
Information concerning oral proceedings
Oct 4, 2018
Information concerning oral proceedings
Oct 4, 2018
Preparation for oral proceedings
Oct 4, 2018
Summons to attend oral proceedings
Oct 4, 2018
Summons to attend oral proceedings
Jul 20, 2018
Brief communication - Opposition proceedings
Jul 15, 2018
(Electronic) Receipt
Jul 15, 2018
Amended claims with annotations
Jul 15, 2018
Amended claims with annotations
Jul 15, 2018
Citation in opposition procedure
Jul 15, 2018
Claims
Jul 15, 2018
Claims
Jul 15, 2018
Letter accompanying subsequently filed items
Jul 15, 2018
Reply of the patent proprietor to the notice(s) of opposition
Mar 6, 2018
Communication of a notice of opposition and request to file observations
Mar 6, 2018
Notice of further oppositions to opponent(s)
Feb 21, 2018
Communication of a notice of opposition - first information to patent proprietor
Feb 13, 2018
(Electronic) Receipt
Feb 13, 2018
Any annexes (other than citation) to an opposition letter
Feb 13, 2018
Notice of opposition
Feb 13, 2018
Notice of opposition
Feb 13, 2018
Patent document cited during the opposition procedure
Feb 13, 2018
Patent document cited during the opposition procedure
Feb 13, 2018
Patent document cited during the opposition procedure
Feb 13, 2018
Patent document cited during the opposition procedure
Feb 13, 2018
Patent document cited during the opposition procedure
Feb 13, 2018
Patent document cited during the opposition procedure
Feb 13, 2018
Patent document cited during the opposition procedure
May 17, 2017
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Apr 21, 2017
Decision to grant a European patent
Apr 6, 2017
(Electronic) Receipt
Apr 6, 2017
English translation of the claims
Apr 6, 2017
Filing of the translations of the claims
Apr 6, 2017
German translation of the claims
Apr 6, 2017
Letter accompanying subsequently filed items
Jan 20, 2017
Bibliographic data of the European patent application
Jan 20, 2017
Communication about intention to grant a European patent
Jan 20, 2017
Intention to grant (signatures)
Jan 20, 2017
Text intended for grant (clean copy)
Jan 20, 2017
Text intended for grant (version for approval)
Aug 24, 2015
Decision to allow further processing
Aug 6, 2015
(Electronic) Receipt
Aug 6, 2015
Amended claims with annotations
Aug 6, 2015
Claims
Aug 6, 2015
Letter accompanying subsequently filed items
Aug 6, 2015
Reply to communication from the Examining Division
Jun 1, 2015
Application deemed to be withdrawn (no reply to communication from the Examining Division)
Mar 26, 2015
Communication of amended entries concerning the representative
Feb 9, 2015
Letter accompanying subsequently filed items
Feb 9, 2015
Submission concerning change of applicant's representative
Dec 22, 2014
Annex to the communication
Dec 22, 2014
Communication from the Examining Division
Oct 22, 2010
Claims
Oct 22, 2010
Reply to communication from the Examining Division
Oct 21, 2010
Claims
Oct 21, 2010
Letter accompanying subsequently filed items
Oct 21, 2010
Reply to communication from the Examining Division
Aug 23, 2010
Grant of extension of time limit (examination procedure)
Aug 13, 2010
Request for extension of time limit to communication from the Examining Division
Apr 23, 2010
Annex to the communication
Apr 23, 2010
Communication from the Examining Division
Dec 22, 2009
Letter accompanying subsequently filed items
Dec 22, 2009
Letter concerning the inventor
Dec 14, 2009
Invitation to indicate correct address of inventor
Dec 7, 2009
Letter which had not been notified
Nov 25, 2009
Notification on forthcoming publication of bibliographic data
Nov 11, 2009
CDS Clean up - amended data concerning the representative for the applicant
Oct 22, 2009
Communication regarding possible amendment of claims/payment of claims fees
Sep 23, 2009
Copy of the international preliminary report on patentability
Sep 18, 2009
(Electronic) Receipt
Sep 18, 2009
Request for entry into the European phase
Jul 16, 2009
Information on entry into European phase
Oct 14, 2008
Priority document (electronically transmitted)
Sep 12, 2008
Copy of the international search report
Sep 12, 2008
Copy of the international search report
Sep 12, 2008
Published international application - A1
Feb 28, 2008
(Electronic) Receipt
Feb 28, 2008
Abstract
Feb 28, 2008
Claims
Feb 28, 2008
Description
Feb 28, 2008
Submission concerning representation

EP2134452

RHODIA OPERATIONS

Application Number: EP08717211A
Filing Date: Feb 28, 2008
Status: Granted And Under Opposition; Apr 14, 2017
Publication Date: May 17, 2017
External Links: Slate, Register , Google Patents