Acoustic Helmholtz Dampening Device For Use In Gas Turbine Engine

Patent No. EP2557282 (titled "Acoustic Helmholtz Dampening Device For Use In Gas Turbine Engine") was filed by General Electric on Aug 8, 2012. The application was issued on Oct 26, 2022.

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
ANSALDO ENERGIA SWITZERLAND	Apr 1, 2016	BERNOTTI

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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Sep 29, 2022
Decision to maintain the European patent in amended form
Sep 29, 2022
Decision to maintain the European patent in amended form
Sep 23, 2022
Termination of the opposition proceedings with maintenance of patent
Sep 20, 2022
(Electronic) Receipt
Sep 20, 2022
Filing of the translation of the amended claims
Sep 20, 2022
French translation of claims
Sep 20, 2022
German translation of the claims
Jun 29, 2022
Communication to opponent concerning maintenance
Jun 29, 2022
Communication with request to file translations
Jun 21, 2022
Maintenance of the patent with the documents specified in the final decision
Jun 9, 2022
Decision of the Board of Appeal
Jun 9, 2022
Druckexemplar in opposition procedure
Jun 9, 2022
F3032 Notification(s) of the decision
Jun 9, 2022
F3032 Notification(s) of the decision
May 2, 2022
F3013 Oral Proceedings: Forwarding minutes
May 2, 2022
F3013 Oral Proceedings: Forwarding minutes
May 2, 2022
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Apr 14, 2022
(Electronic) Receipt
Apr 14, 2022
F3345 Forwarding of submissions to parties
Apr 14, 2022
Letter accompanying subsequently filed items
Apr 14, 2022
Letter dealing with oral proceedings during the appeal procedure
Mar 17, 2022
F3345 Forwarding of submissions to parties
Mar 14, 2022
(Electronic) Receipt
Mar 14, 2022
Letter accompanying subsequently filed items
Mar 14, 2022
Letter dealing with oral proceedings during the appeal procedure
Jan 5, 2022
F3345 Forwarding of submissions to parties
Dec 22, 2021
(Electronic) Receipt
Dec 22, 2021
Letter accompanying subsequently filed items
Dec 22, 2021
Letter dealing with oral proceedings during the appeal procedure
Dec 22, 2021
Patent Document cited during the appeal procedure
Dec 22, 2021
Patent Document cited during the appeal procedure
Sep 30, 2021
F3936 Acknowledgement of receipt Board of Appeal
Sep 29, 2021
F3011.2 Oral Proceedings: Summons VICO
Sep 29, 2021
F3011.2 Oral Proceedings: Summons VICO
Sep 29, 2021
F3350 Communication regarding oral proceedings (art. 15 Rules of Procedure of the Boards of Appeal)
Sep 24, 2021
F3010 Oral proceedings: order for summons
Feb 16, 2021
F3303.16 Change of composition of the Board (T)
Jul 3, 2019
Composition of the board (T)
Mar 6, 2019
F3345 Forwarding of submissions to parties
Mar 5, 2019
Communication confirming withdrawal from representation
Mar 5, 2019
Communication of amended entries concerning the representative
Mar 5, 2019
F3345 Forwarding of submissions to parties
Mar 1, 2019
(Electronic) Receipt
Mar 1, 2019
Letter accompanying subsequently filed items
Mar 1, 2019
Submission concerning change of applicant's representative
Feb 27, 2019
(Electronic) Receipt
Feb 27, 2019
Letter accompanying subsequently filed items
Feb 27, 2019
Letter relating to the automatic debiting procedure
Feb 27, 2019
Submission concerning change of proprietor's representative
Feb 21, 2019
F3345 Forwarding of submissions to parties
Feb 15, 2019
(Electronic) Receipt
Feb 15, 2019
Letter accompanying subsequently filed items
Feb 15, 2019
Reply to appeal
Oct 5, 2018
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Sep 28, 2018
(Electronic) Receipt
Sep 28, 2018
Letter accompanying subsequently filed items
Sep 28, 2018
Statement of grounds of appeal
Aug 3, 2018
F3204 Communication of the file number to the parties
Aug 3, 2018
F3204 Communication of the file number to the parties
Jul 30, 2018
Processing of an appeal
Jul 27, 2018
(Electronic) Receipt
Jul 27, 2018
Letter accompanying subsequently filed items
Jul 27, 2018
Notice of appeal
Jun 15, 2018
Advice of delivery
Jun 11, 2018
Advice of delivery
Jun 11, 2018
Advice of delivery
Jun 6, 2018
Advice of delivery
May 28, 2018
Annex to the communication - opposition
May 28, 2018
Decision of the Opposition Division and instruction
May 28, 2018
Documents for the maintenance of the patent as amended
May 28, 2018
Druckexemplar in opposition procedure
May 28, 2018
Grounds for the decision (Annex) - opposition
May 28, 2018
Interlocutory decision in opposition proceedings
May 28, 2018
Internal form - Opposition/addressees
May 28, 2018
Internal form - Opposition/addressees
May 28, 2018
Means of redress
May 28, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
May 28, 2018
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
May 28, 2018
Provision of a copy of the minutes - opposition procedure
May 28, 2018
Scanned annex to a communication - opposition procedure
Jan 31, 2018
Information about the result of oral proceedings
Jan 12, 2018
Authorisation
Jan 12, 2018
Request concerning representative opponent
Jan 8, 2018
Brief communication - Opposition proceedings
Jan 5, 2018
Brief communication - Opposition proceedings
Jan 2, 2018
(Electronic) Receipt
Jan 2, 2018
Auxiliary request during Opposition procedure
Jan 2, 2018
Auxiliary request during Opposition procedure
Jan 2, 2018
Auxiliary request during Opposition procedure - 01
Jan 2, 2018
Auxiliary request during Opposition procedure - 02
Jan 2, 2018
Letter accompanying subsequently filed items
Jan 2, 2018
Written submission in preparation to/during oral proceedings
Dec 22, 2017
Any annexes (other than citation) to an opposition letter
Dec 22, 2017
Letter accompanying subsequently filed items
Dec 22, 2017
Written submission in preparation to/during oral proceedings
Dec 11, 2017
Authorisation
Dec 11, 2017
Request concerning the applicant/representative
Nov 24, 2017
Brief communication - Opposition proceedings
Nov 20, 2017
(Electronic) Receipt
Nov 20, 2017
Authorisation
Nov 20, 2017
Letter accompanying subsequently filed items
Nov 20, 2017
Request for interpreters during oral proceedings
Nov 16, 2017
Brief communication - Opposition proceedings
Nov 10, 2017
(Electronic) Receipt
Nov 10, 2017
Letter accompanying subsequently filed items
Nov 10, 2017
Request for interpreters during oral proceedings
Jun 26, 2017
Advice of delivery
Jun 19, 2017
Advice of delivery
Jun 7, 2017
Advice of delivery
Jun 7, 2017
Advice of delivery
May 30, 2017
Annex to the communication - opposition
May 30, 2017
Information concerning oral proceedings
May 30, 2017
Preparation for oral proceedings
May 30, 2017
Summons to attend oral proceedings
May 30, 2017
Summons to attend oral proceedings
Nov 25, 2016
Brief communication - Opposition proceedings
Nov 21, 2016
(Electronic) Receipt
Nov 21, 2016
Letter accompanying subsequently filed items
Nov 21, 2016
Reply of the patent proprietor to the notice(s) of opposition
Jul 5, 2016
Brief communication - Opposition proceedings
Jul 5, 2016
Grant of extension of time limit (opposition procedure)
Jun 29, 2016
(Electronic) Receipt
Jun 29, 2016
Letter accompanying subsequently filed items
Jun 29, 2016
Request for extension of time limit
May 11, 2016
Communication of a notice of opposition and request to file observations
May 11, 2016
Notice of further oppositions to opponent(s)
Apr 19, 2016
Communication of a notice of opposition - first information to patent proprietor
Apr 1, 2016
(Electronic) Receipt
Apr 1, 2016
Any annexes (other than citation) to an opposition letter
Apr 1, 2016
Notice of opposition
Apr 1, 2016
Notice of opposition
Apr 1, 2016
Patent document cited during the opposition procedure
Apr 1, 2016
Patent document cited during the opposition procedure
Apr 1, 2016
Patent document cited during the opposition procedure
Apr 1, 2016
Patent document cited during the opposition procedure
Apr 1, 2016
Patent document cited during the opposition procedure
Apr 1, 2016
Patent document cited during the opposition procedure
Apr 1, 2016
Patent document cited during the opposition procedure
Jul 2, 2015
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jun 5, 2015
Decision to grant a European patent
May 18, 2015
(Electronic) Receipt
May 18, 2015
Filing of the translations of the claims
May 18, 2015
French translation of claims
May 18, 2015
German translation of the claims
Mar 2, 2015
Bibliographic data of the European patent application
Mar 2, 2015
Communication about intention to grant a European patent
Mar 2, 2015
Intention to grant (signatures)
Mar 2, 2015
Text intended for grant
Feb 6, 2015
Examination started
Aug 13, 2013
(Electronic) Receipt
Aug 13, 2013
Amended claims filed after receipt of (European) search report
Aug 13, 2013
Amended claims with annotations
Aug 13, 2013
Amended description filed after receipt of (European) search report
Aug 13, 2013
Amended description with annotations
Aug 13, 2013
Amendments received before examination
Aug 13, 2013
Letter accompanying subsequently filed items
Jul 3, 2013
CDS Clean up - amended data concerning the representative for the applicant
Jul 1, 2013
Submission concerning representation
Feb 18, 2013
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Jan 16, 2013
Notification of forthcoming publication
Jan 2, 2013
Communication regarding the transmission of the European search report
Jan 2, 2013
European search opinion
Jan 2, 2013
European search report
Dec 17, 2012
Modified abstract
Nov 5, 2012
Communication to designated inventor
Nov 5, 2012
Communication to designated inventor
Nov 5, 2012
Communication to designated inventor
Oct 16, 2012
Confirmation of receipt of (electronically) transmitted priority document
Oct 11, 2012
Priority document (electronically transmitted)
Aug 8, 2012
Abstract
Aug 8, 2012
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Aug 8, 2012
Claims
Aug 8, 2012
Description
Aug 8, 2012
Designation of inventor
Aug 8, 2012
Designation of inventor
Aug 8, 2012
Designation of inventor
Aug 8, 2012
Drawings
Aug 8, 2012
Request for grant of a European patent

EP2557282

GENERAL ELECTRIC

Application Number: EP12179748A
Filing Date: Aug 8, 2012
Status: Patent Maintained As Amended; Sep 23, 2022
Publication Date: Oct 26, 2022
External Links: Slate, Register , Google Patents

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Acoustic Helmholtz Dampening Device For Use In Gas Turbine Engine

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Dossier Documents

EP2557282