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Silencer, Exhaust Valve, Valve Device, Air Dryer, Compressed Air Supply Device For Vehicle, And Compressed Air Supply System

Patent No. EP2641648 (titled "Silencer, Exhaust Valve, Valve Device, Air Dryer, Compressed Air Supply Device For Vehicle, And Compressed Air Supply System") was filed by Nabtesco Automotive on Nov 14, 2011. The application was issued on Aug 21, 2019.

Patent Summary

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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
KNORR BREMSE SYSTEME FUR NUTZFAHRZEUGE	May 20, 2020	DTS PATENT UND RECHTSANWALTE PARTMBB

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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Dec 22, 2025
Annex to the communication - opposition
Dec 22, 2025
Brief communication - Opposition proceedings
Dec 22, 2025
Brief communication - Opposition proceedings
Dec 22, 2025
Decision of the Opposition Division and instruction
Dec 22, 2025
Druckexemplar in opposition procedure
Dec 22, 2025
Grounds for the decision (Annex) - opposition
Dec 22, 2025
Interlocutory decision in opposition proceedings
Dec 22, 2025
Interlocutory decision in opposition proceedings
Dec 22, 2025
Means of redress
Dec 22, 2025
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 22, 2025
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Dec 22, 2025
Provision of a copy of the minutes - opposition procedure
Dec 22, 2025
Provision of a copy of the minutes - opposition procedure
Nov 27, 2025
Information about the result of oral proceedings
Nov 21, 2025
Brief communication - Opposition proceedings
Nov 19, 2025
(Electronic) Receipt
Nov 19, 2025
Letter accompanying subsequently filed items
Nov 19, 2025
Letter dealing with oral proceedings
Oct 1, 2025
Brief communication - Opposition proceedings
Sep 26, 2025
(Electronic) Receipt
Sep 26, 2025
Letter accompanying subsequently filed items
Sep 26, 2025
Written submission in preparation to/during oral proceedings
Aug 1, 2025
Brief communication - Opposition proceedings
Jul 28, 2025
(Electronic) Receipt
Jul 28, 2025
(Electronic) Receipt
Jul 28, 2025
Amended description with annotations
Jul 28, 2025
Amended description with annotations
Jul 28, 2025
Amended description with annotations
Jul 28, 2025
Amended description with annotations
Jul 28, 2025
Description
Jul 28, 2025
Description
Jul 28, 2025
Description
Jul 28, 2025
Description
Jul 28, 2025
Letter accompanying subsequently filed items
Jul 28, 2025
Letter accompanying subsequently filed items
Jul 28, 2025
Request for interpreters during oral proceedings
Jul 28, 2025
Written submission in preparation to/during oral proceedings
May 21, 2025
Brief communication - Opposition proceedings
May 14, 2025
(Electronic) Receipt
May 14, 2025
Letter accompanying subsequently filed items
May 14, 2025
Request for interpreters during oral proceedings
Apr 17, 2025
Annex to the communication - opposition
Apr 17, 2025
Information concerning oral proceedings
Apr 17, 2025
Scanned annex to a communication - opposition procedure
Apr 17, 2025
Summons to attend oral proceedings
Apr 17, 2025
Summons to attend oral proceedings
Jan 14, 2025
Brief communication - Opposition proceedings
Jan 7, 2025
(Electronic) Receipt
Jan 7, 2025
Letter accompanying subsequently filed items
Jan 7, 2025
Reply to an examination report in opposition proceedings
Nov 7, 2024
Annex to the communication - opposition
Nov 7, 2024
Brief communication - Opposition proceedings
Nov 7, 2024
Brief communication - Opposition proceedings
Nov 7, 2024
Communication inviting the parties to file observations
Nov 7, 2024
Communication inviting the parties to file observations
Aug 28, 2024
Brief communication - Opposition proceedings
Aug 26, 2024
Brief communication - Opposition proceedings
Aug 21, 2024
(Electronic) Receipt
Aug 21, 2024
Letter accompanying subsequently filed items
Aug 21, 2024
Reply to an examination report in opposition proceedings
Aug 16, 2024
(Electronic) Receipt
Aug 16, 2024
Letter accompanying subsequently filed items
Aug 16, 2024
Main request during Opposition procedure
Aug 16, 2024
Main request during Opposition procedure
Aug 16, 2024
Reply to an examination report in opposition proceedings
Jun 21, 2024
Annex to the communication - opposition
Jun 21, 2024
Brief communication - Opposition proceedings
Jun 21, 2024
Brief communication - Opposition proceedings
Jun 21, 2024
Communication inviting the parties to file observations
Jun 21, 2024
Communication inviting the parties to file observations
Mar 15, 2024
Brief communication - Opposition proceedings
Mar 7, 2024
(Electronic) Receipt
Mar 7, 2024
Letter accompanying subsequently filed items
Mar 7, 2024
Main request during Opposition procedure
Mar 7, 2024
Main request during Opposition procedure
Mar 7, 2024
Reply to an examination report in opposition proceedings
Nov 7, 2023
Annex to the communication - opposition
Nov 7, 2023
Brief communication - Opposition proceedings
Nov 7, 2023
Brief communication - Opposition proceedings
Nov 7, 2023
Communication inviting the parties to file observations
Nov 7, 2023
Communication inviting the parties to file observations
Jul 27, 2023
Decision of the Board of Appeal
Jul 27, 2023
Decision of the Board of Appeal
Jul 27, 2023
F3032 Notification(s) of the decision
Jul 27, 2023
F3032 Notification(s) of the decision
Jun 7, 2023
F3013 Oral Proceedings: Forwarding minutes
Jun 7, 2023
F3013 Oral Proceedings: Forwarding minutes
Jun 7, 2023
F3317 Oral Proceedings: Minutes (Appellant: Proprietor + Opponent)
May 23, 2023
(Electronic) Receipt
May 23, 2023
(Electronic) Receipt
May 23, 2023
Letter accompanying subsequently filed items
May 23, 2023
Letter accompanying subsequently filed items
May 15, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
May 15, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
May 15, 2023
Oral proceedings: change of venue
May 15, 2023
Oral proceedings: change of venue
May 10, 2023
F3345 Forwarding of submissions to parties
May 8, 2023
F3345 Forwarding of submissions to parties
May 5, 2023
(Electronic) Receipt
May 5, 2023
Letter accompanying subsequently filed items
May 5, 2023
Letter dealing with oral proceedings during the appeal procedure
Apr 28, 2023
(Electronic) Receipt
Apr 28, 2023
Letter accompanying subsequently filed items
Apr 28, 2023
Letter dealing with oral proceedings
Apr 26, 2023
F3018 Oral proceedings: Confirmation interpreters
Apr 26, 2023
F3018 Oral proceedings: Confirmation interpreters
Apr 24, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Apr 24, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Apr 24, 2023
F3345 Forwarding of submissions to parties
Apr 18, 2023
(Electronic) Receipt
Apr 18, 2023
Letter accompanying subsequently filed items
Apr 18, 2023
Request for interpreters during oral proceedings
Mar 29, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Mar 29, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Mar 23, 2023
F3345 Forwarding of submissions to parties
Mar 19, 2023
(Electronic) Receipt
Mar 19, 2023
Letter accompanying subsequently filed items
Mar 19, 2023
Request for interpreters during oral proceedings
Mar 6, 2023
F3011.1 Oral Proceedings: summons
Mar 6, 2023
F3011.1 Oral Proceedings: summons
Mar 1, 2023
F3010 Oral proceedings: order for summons
Mar 1, 2023
F3303.17 Change of the composition of the Board (T), in case Chairman is a legal member
Dec 7, 2022
Request concerning representative opponent
Oct 13, 2022
F3345 Forwarding of submissions to parties
Oct 7, 2022
(Electronic) Receipt
Oct 7, 2022
Amended claims with annotations
Oct 7, 2022
Amended claims with annotations
Oct 7, 2022
Amended claims with annotations
Oct 7, 2022
Amended claims with annotations
Oct 7, 2022
Amended claims with annotations
Oct 7, 2022
Amended claims with annotations
Oct 7, 2022
Auxiliary request during appeals procedure - 01
Oct 7, 2022
Auxiliary request during appeals procedure - 03
Oct 7, 2022
Auxiliary request during appeals procedure - 06
Oct 7, 2022
Auxiliary request during appeals procedure - 07
Oct 7, 2022
Auxiliary request during appeals procedure - 08
Oct 7, 2022
Auxiliary request during appeals procedure - 09
Oct 7, 2022
Letter accompanying subsequently filed items
Oct 7, 2022
Reply to appeal
Oct 5, 2022
F3345 Forwarding of submissions to parties
Sep 29, 2022
(Electronic) Receipt
Sep 29, 2022
Letter accompanying subsequently filed items
Sep 29, 2022
Reply to appeal
Aug 11, 2022
Communication of amended entries in the Register of European Patents
Aug 11, 2022
F3345 Forwarding of submissions to parties
Jul 26, 2022
(Electronic) Receipt
Jul 26, 2022
Letter accompanying subsequently filed items
Jul 25, 2022
Composition of the board (T)
May 30, 2022
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
May 30, 2022
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
May 23, 2022
(Electronic) Receipt
May 23, 2022
Amended claims with annotations
May 23, 2022
Amended claims with annotations
May 23, 2022
Amended claims with annotations
May 23, 2022
Amended claims with annotations
May 23, 2022
Amended claims with annotations
May 23, 2022
Auxiliary request during appeals procedure - 01
May 23, 2022
Auxiliary request during appeals procedure - 02
May 23, 2022
Auxiliary request during appeals procedure - 03
May 23, 2022
Auxiliary request during appeals procedure - 04
May 23, 2022
Auxiliary request during appeals procedure - 05
May 23, 2022
Letter accompanying subsequently filed items
May 23, 2022
Statement of grounds of appeal
May 17, 2022
(Electronic) Receipt
May 17, 2022
Letter accompanying subsequently filed items
May 17, 2022
Statement of grounds of appeal
Mar 24, 2022
F3204 Communication of the file number to the parties
Mar 24, 2022
F3204 Communication of the file number to the parties
Mar 21, 2022
(Electronic) Receipt
Mar 21, 2022
Letter accompanying subsequently filed items
Mar 21, 2022
Notice of appeal
Mar 10, 2022
F3204 Communication of the file number to the parties
Mar 10, 2022
F3204 Communication of the file number to the parties
Mar 5, 2022
(Electronic) Receipt
Mar 5, 2022
Letter accompanying subsequently filed items
Mar 5, 2022
Notice of appeal
Jan 11, 2022
Advice of delivery
Jan 11, 2022
Annex to the communication - opposition
Jan 11, 2022
Decision of the Opposition Division and instruction
Jan 11, 2022
Druckexemplar in opposition procedure
Jan 11, 2022
Grounds for the decision (Annex) - opposition
Jan 11, 2022
Interlocutory decision in opposition proceedings
Jan 11, 2022
Interlocutory decision in opposition proceedings
Jan 11, 2022
Means of redress
Jan 11, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jan 11, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jan 11, 2022
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jan 11, 2022
Provision of a copy of the minutes - opposition procedure
Jan 11, 2022
Provision of a copy of the minutes - opposition procedure
Jan 11, 2022
Scanned annex to a communication - opposition procedure
Jan 11, 2022
Transmittal of decision / summons - opposition
Jan 11, 2022
Transmittal of decision / summons - opposition
Dec 3, 2021
Information about the result of oral proceedings
Nov 15, 2021
Brief communication - Opposition proceedings
Nov 9, 2021
(Electronic) Receipt
Nov 9, 2021
Letter accompanying subsequently filed items
Nov 9, 2021
Written submission in preparation to/during oral proceedings
Oct 6, 2021
Brief communication - Opposition proceedings
Sep 30, 2021
(Electronic) Receipt
Sep 30, 2021
(Electronic) Receipt
Sep 30, 2021
Letter accompanying subsequently filed items
Sep 30, 2021
Written submission in preparation to/during oral proceedings
Aug 24, 2021
(Electronic) Receipt
Aug 12, 2021
Brief communication - Opposition proceedings
Aug 9, 2021
(Electronic) Receipt
Aug 9, 2021
Letter accompanying subsequently filed items
Aug 9, 2021
Written submission in preparation to/during oral proceedings
Aug 2, 2021
Notification concerning the date of oral proceedings
Aug 2, 2021
Notification concerning the date of oral proceedings
Jul 7, 2021
Brief communication - Opposition proceedings
Jul 2, 2021
(Electronic) Receipt
Jul 2, 2021
Letter accompanying subsequently filed items
Jul 2, 2021
Request for interpreters during oral proceedings
Mar 15, 2021
Brief communication - Opposition proceedings
Mar 10, 2021
(Electronic) Receipt
Mar 10, 2021
Letter accompanying subsequently filed items
Mar 10, 2021
Request for interpreters during oral proceedings
Feb 23, 2021
Advice of delivery
Feb 23, 2021
Annex to the communication - opposition
Feb 23, 2021
Information concerning oral proceedings
Feb 23, 2021
Summons to attend oral proceedings
Feb 23, 2021
Summons to attend oral proceedings
Feb 23, 2021
Transmittal of decision / summons - opposition
Feb 23, 2021
Transmittal of decision / summons - opposition
Nov 3, 2020
Brief communication - Opposition proceedings
Oct 29, 2020
(Electronic) Receipt
Oct 29, 2020
Auxiliary request during Opposition procedure
Oct 29, 2020
Auxiliary request during Opposition procedure
Oct 29, 2020
Auxiliary request during Opposition procedure
Oct 29, 2020
Auxiliary request during Opposition procedure - 01
Oct 29, 2020
Auxiliary request during Opposition procedure - 02
Oct 29, 2020
Auxiliary request during Opposition procedure - 03
Oct 29, 2020
Citation in opposition procedure - 010
Oct 29, 2020
Citation in opposition procedure - 011
Oct 29, 2020
Consolidated list of cited opposition documents
Oct 29, 2020
Letter accompanying subsequently filed items
Oct 29, 2020
Reply of the patent proprietor to the notice(s) of opposition
Jun 19, 2020
Communication of a notice of opposition and request to file observations
Jun 19, 2020
Notice of further oppositions to opponent(s)
Jun 3, 2020
Communication of a notice of opposition - first information to patent proprietor
May 20, 2020
(Electronic) Receipt
May 20, 2020
Citation in opposition procedure
May 20, 2020
Citation in opposition procedure - 001
May 20, 2020
Citation in opposition procedure - 002
May 20, 2020
Citation in opposition procedure - 003
May 20, 2020
Citation in opposition procedure - 004
May 20, 2020
Citation in opposition procedure - 005
May 20, 2020
Citation in opposition procedure - 005
May 20, 2020
Citation in opposition procedure - 006
May 20, 2020
Citation in opposition procedure - 007
May 20, 2020
Citation in opposition procedure - 008
May 20, 2020
Citation in opposition procedure - 009
May 20, 2020
Citation in opposition procedure - 010
May 20, 2020
Notice of opposition
May 20, 2020
Notice of opposition
Sep 2, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 25, 2019
Decision to grant a European patent
Jul 12, 2019
(Electronic) Receipt
Jul 12, 2019
Filing of the translations of the claims
Jul 12, 2019
French translation of claims
Jul 12, 2019
German translation of the claims
Jul 12, 2019
Letter accompanying subsequently filed items
Mar 5, 2019
Bibliographic data of the European patent application
Mar 5, 2019
Communication about intention to grant a European patent
Mar 5, 2019
Intention to grant (signatures)
Mar 5, 2019
Text intended for grant (clean copy)
Mar 5, 2019
Text intended for grant (version for approval)
Jan 24, 2019
Examination started
Sep 6, 2018
Response to enquiry for communication from the Examining Division
Aug 24, 2018
(Electronic) Receipt
Aug 24, 2018
Enquiry as to the processing of the file
Aug 24, 2018
Letter accompanying subsequently filed items
May 28, 2018
Communication of amended entries concerning the representative
May 17, 2018
Submission concerning change of applicant's representative
Nov 4, 2015
(Electronic) Receipt
Nov 4, 2015
Amended claims filed after receipt of (European) search report
Nov 4, 2015
Amended claims with annotations
Nov 4, 2015
Amended description filed after receipt of (European) search report
Nov 4, 2015
Amended description with annotations
Nov 4, 2015
Amendments received before examination
Nov 4, 2015
Letter accompanying subsequently filed items
Apr 24, 2015
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Apr 7, 2015
Communication regarding the transmission of the European search report
Apr 7, 2015
European search opinion
Apr 7, 2015
Supplementary European search report
Mar 20, 2015
Search started
Nov 21, 2014
Payment of fees and costs
Nov 21, 2014
Payment of fees and costs
Nov 22, 2013
Payment of fees and costs
Nov 22, 2013
Payment of fees and costs
Aug 28, 2013
Notification of forthcoming publication
Jun 25, 2013
Communication regarding possible amendment of the application/payment of claims fee
Jun 19, 2013
Communication to designated inventor
Jun 19, 2013
Communication to designated inventor
Jun 19, 2013
Communication to designated inventor
Jun 19, 2013
Communication to designated inventor
Jun 7, 2013
Copy of the international preliminary report on patentability
Jun 7, 2013
Translation of the international preliminary report on patentability
May 24, 2013
(Electronic) Receipt
May 24, 2013
Abstract
May 24, 2013
Amended description filed after receipt of (European) search report
May 24, 2013
Annex
May 24, 2013
Claims
May 24, 2013
Description
May 24, 2013
Drawings
May 24, 2013
Matter concerning the application
May 24, 2013
Request for entry into the European phase
May 10, 2013
Republication of front page of international application with corrected bibliographic data
Apr 2, 2013
Information on entry into European phase
Jul 26, 2012
Copy of the international search report
Jul 26, 2012
Copy of the translated international search report
Jul 26, 2012
International publication of the international search report
Jun 11, 2012
Priority document (electronically transmitted)
Jun 11, 2012
Priority document (electronically transmitted)
Jun 11, 2012
Priority document (electronically transmitted)
Jun 11, 2012
Priority document (electronically transmitted)
Jun 11, 2012
Priority document (electronically transmitted)
Jun 11, 2012
Priority document (electronically transmitted)
Jun 11, 2012
Priority document (electronically transmitted)
May 24, 2012
International publication pamphlet

EP2641648

NABTESCO AUTOMOTIVE

Application Number: EP11841061A
Filing Date: Nov 14, 2011
Status: Granted And Under Opposition; Jul 19, 2019
Publication Date: Aug 21, 2019
External Links: Slate, Register , Google Patents