Fuel-Fired Furnace And Method For Controlling Combustion In A Fuel-Fired Furnace

Patent No. EP2561295 (titled "Fuel-Fired Furnace And Method For Controlling Combustion In A Fuel-Fired Furnace") was filed by Lair Liquide on Mar 30, 2011. The application was issued on Apr 2, 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
LINDE	Feb 14, 2019	-

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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Mar 6, 2025
Decision to maintain the European patent in amended form
Mar 6, 2025
Decision to maintain the European patent in amended form
Feb 18, 2025
(Electronic) Receipt
Feb 18, 2025
Amended claims with annotations
Feb 18, 2025
Amended description with annotations
Feb 18, 2025
Clean copy of claims in the opposition procedure
Feb 18, 2025
Clean copy of description pages in the opposition procedure
Feb 18, 2025
Druckexemplar in opposition procedure
Feb 18, 2025
English translation of the claims
Feb 18, 2025
Filing of the translation of the amended claims
Feb 18, 2025
German translation of the claims
Feb 18, 2025
Letter accompanying subsequently filed items
Dec 3, 2024
Communication of bibliographic data
Dec 3, 2024
Communication to opponent concerning maintenance
Dec 3, 2024
Communication with request to file translations
Nov 26, 2024
Maintenance of the patent with the documents specified in the final decision
Nov 13, 2024
OPPODREX with handwritten amendments
Nov 11, 2024
Decision of the Board of Appeal
Nov 11, 2024
F3032 Notification(s) of the decision
Nov 11, 2024
F3032 Notification(s) of the decision
Sep 30, 2024
Amended claims with annotations
Sep 30, 2024
Amended claims with annotations
Sep 30, 2024
Amended description with annotations
Sep 30, 2024
F3013 Oral Proceedings: Forwarding minutes
Sep 30, 2024
F3013 Oral Proceedings: Forwarding minutes
Sep 30, 2024
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Sep 19, 2024
Amended claims with annotations
Sep 19, 2024
Amended claims with annotations
Sep 19, 2024
Amended description with annotations
Jul 25, 2024
F3018 Oral proceedings: Confirmation interpreters
Jul 25, 2024
F3018 Oral proceedings: Confirmation interpreters
Jul 24, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jul 24, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jul 19, 2024
(Electronic) Receipt
Jul 19, 2024
Letter accompanying subsequently filed items
Jul 19, 2024
Request for interpreters during oral proceedings
Apr 3, 2024
F3345 Forwarding of submissions to parties
Mar 27, 2024
(Electronic) Receipt
Mar 27, 2024
Letter accompanying subsequently filed items
Mar 27, 2024
Request for interpreters during oral proceedings
Mar 13, 2024
F3011.1 Oral Proceedings: summons
Mar 13, 2024
F3011.1 Oral Proceedings: summons
Mar 8, 2024
F3010 Oral proceedings: order for summons
Mar 12, 2023
Composition of the board (T)
Apr 22, 2022
F3345 Forwarding of submissions to parties
Apr 15, 2022
(Electronic) Receipt
Apr 15, 2022
Letter accompanying subsequently filed items
Apr 15, 2022
Reply to appeal
Dec 15, 2021
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Dec 10, 2021
(Electronic) Receipt
Dec 10, 2021
Citation in appeal procedure - 010
Dec 10, 2021
Consolidated list of documents cited in appeal procedure
Dec 10, 2021
Letter accompanying subsequently filed items
Dec 10, 2021
Statement of grounds of appeal
Oct 8, 2021
F3204 Communication of the file number to the parties
Oct 8, 2021
F3204 Communication of the file number to the parties
Oct 4, 2021
(Electronic) Receipt
Oct 4, 2021
Letter accompanying subsequently filed items
Oct 4, 2021
Notice of appeal
Aug 12, 2021
(Electronic) Receipt
Aug 12, 2021
Advice of delivery
Aug 12, 2021
Letter accompanying subsequently filed items
Aug 9, 2021
Advice of delivery
Aug 4, 2021
Annex to the communication - opposition
Aug 4, 2021
Decision of the Opposition Division and instruction
Aug 4, 2021
Decision rejecting the opposition
Aug 4, 2021
Decision rejecting the opposition
Aug 4, 2021
Grounds for the decision (Annex) - opposition
Aug 4, 2021
Means of redress
Aug 4, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Aug 4, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Aug 4, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Aug 4, 2021
Provision of a copy of the minutes - opposition procedure
Aug 4, 2021
Provision of a copy of the minutes - opposition procedure
Aug 4, 2021
Transmittal of decision / summons - opposition
Aug 4, 2021
Transmittal of decision / summons - opposition
May 21, 2021
Information about the result of oral proceedings
Apr 29, 2021
Communication for party to proceedings/third party
Apr 29, 2021
Communication for party to proceedings/third party
Mar 24, 2021
Brief communication - Opposition proceedings
Mar 19, 2021
Citation in opposition procedure - 008
Mar 19, 2021
Citation in opposition procedure - 009
Mar 19, 2021
Consolidated list of cited opposition documents
Mar 19, 2021
Written submission in preparation to/during oral proceedings
Feb 22, 2021
Notification concerning the date of oral proceedings
Feb 22, 2021
Notification concerning the date of oral proceedings
Nov 10, 2020
Communication of amended entries concerning the representative
Nov 3, 2020
Letter accompanying subsequently filed items
Nov 3, 2020
Submission concerning representation
Jun 11, 2020
Advice of delivery
Jun 9, 2020
Advice of delivery
May 28, 2020
Acknowledgement of a document
May 28, 2020
Acknowledgement of a document
May 28, 2020
Information concerning oral proceedings
May 28, 2020
Summons to attend oral proceedings
May 28, 2020
Summons to attend oral proceedings
May 26, 2020
Notification concerning the date of oral proceedings
May 26, 2020
Notification concerning the date of oral proceedings
May 18, 2020
Brief communication - Opposition proceedings
May 18, 2020
Communication of amended entries
May 15, 2020
Brief communication - Opposition proceedings
May 13, 2020
Oral proceedings: Request for postponement
May 13, 2020
Request for change of name -opponent
May 12, 2020
(Electronic) Receipt
May 12, 2020
Annexes in respect of a client data request
May 12, 2020
Annexes in respect of a client data request
May 12, 2020
Letter accompanying subsequently filed items
May 12, 2020
Oral proceedings: Request for postponement
May 12, 2020
Request for change of name -opponent
Apr 21, 2020
Brief communication - Opposition proceedings
Apr 16, 2020
Written submission in preparation to/during oral proceedings
Apr 9, 2020
Brief communication - Opposition proceedings
Apr 3, 2020
(Electronic) Receipt
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure
Apr 3, 2020
Auxiliary request during Opposition procedure - 01
Apr 3, 2020
Auxiliary request during Opposition procedure - 02
Apr 3, 2020
Auxiliary request during Opposition procedure - 03
Apr 3, 2020
Auxiliary request during Opposition procedure - 04
Apr 3, 2020
Auxiliary request during Opposition procedure - 05
Apr 3, 2020
Auxiliary request during Opposition procedure - 06
Apr 3, 2020
Auxiliary request during Opposition procedure - 07
Apr 3, 2020
Auxiliary request during Opposition procedure - 08
Apr 3, 2020
Auxiliary request during Opposition procedure - 09
Apr 3, 2020
Auxiliary request during Opposition procedure - 10
Apr 3, 2020
Auxiliary request during Opposition procedure - 11
Apr 3, 2020
Auxiliary request during Opposition procedure - 12
Apr 3, 2020
Auxiliary request during Opposition procedure - 13
Apr 3, 2020
Auxiliary request during Opposition procedure - 14
Apr 3, 2020
Auxiliary request during Opposition procedure - 15
Apr 3, 2020
Auxiliary request during Opposition procedure - 16
Apr 3, 2020
Auxiliary request during Opposition procedure - 17
Apr 3, 2020
Letter accompanying subsequently filed items
Apr 3, 2020
Written submission in preparation to/during oral proceedings
Nov 22, 2019
Advice of delivery
Nov 18, 2019
Advice of delivery
Nov 15, 2019
Acknowledgement of a document
Nov 15, 2019
Acknowledgement of a document
Nov 15, 2019
Annex to the communication - opposition
Nov 15, 2019
Information concerning oral proceedings
Nov 15, 2019
Summons to attend oral proceedings
Nov 15, 2019
Summons to attend oral proceedings
Jul 24, 2019
Brief communication - Opposition proceedings
Jul 17, 2019
(Electronic) Receipt
Jul 17, 2019
Auxiliary request during Opposition procedure
Jul 17, 2019
Auxiliary request during Opposition procedure
Jul 17, 2019
Auxiliary request during Opposition procedure
Jul 17, 2019
Auxiliary request during Opposition procedure - 01
Jul 17, 2019
Auxiliary request during Opposition procedure - 02
Jul 17, 2019
Auxiliary request during Opposition procedure - 03
Jul 17, 2019
Citation in opposition procedure - 006
Jul 17, 2019
Citation in opposition procedure - 007
Jul 17, 2019
Letter accompanying subsequently filed items
Jul 17, 2019
Reply of the patent proprietor to the notice(s) of opposition
Mar 7, 2019
Communication of a notice of opposition and request to file observations
Mar 7, 2019
Notice of further oppositions to opponent(s)
Feb 27, 2019
Reply to the communication concerning admissibility of an opposition
Feb 25, 2019
Brief communication - Opposition proceedings
Feb 25, 2019
Communication indicating deficiencies in the notice of opposition which may be remedied
Feb 21, 2019
Communication of a notice of opposition - first information to patent proprietor
Feb 14, 2019
Citation in opposition procedure - 001
Feb 14, 2019
Citation in opposition procedure - 001
Feb 14, 2019
Citation in opposition procedure - 002
Feb 14, 2019
Citation in opposition procedure - 003
Feb 14, 2019
Citation in opposition procedure - 004
Feb 14, 2019
Citation in opposition procedure - 005
Feb 14, 2019
International publication (Pamphlet)
Feb 14, 2019
International publication (Pamphlet)
Feb 14, 2019
Letter concerning fees and payments
Feb 14, 2019
Notice of opposition
Feb 14, 2019
Priority document
May 30, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Apr 19, 2018
Decision to grant a European patent
Apr 4, 2018
(Electronic) Receipt
Apr 4, 2018
English translation of the claims
Apr 4, 2018
Filing of the translations of the claims
Apr 4, 2018
German translation of the claims
Apr 4, 2018
Letter accompanying subsequently filed items
Dec 8, 2017
Bibliographic data of the European patent application
Dec 8, 2017
Communication about intention to grant a European patent
Dec 8, 2017
Intention to grant (signatures)
Dec 8, 2017
Text intended for grant (clean copy)
Dec 8, 2017
Text intended for grant (version for approval)
Nov 29, 2017
Processing of request for correction of text proposed for grant or third party observations (from 01-04-2012)
Oct 27, 2017
(Electronic) Receipt
Oct 27, 2017
Amended claims with annotations
Oct 27, 2017
Claims
Oct 27, 2017
Letter accompanying subsequently filed items
Oct 27, 2017
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Sep 27, 2017
Bibliographic data of the European patent application
Sep 27, 2017
Communication about intention to grant a European patent
Sep 27, 2017
Intention to grant (signatures)
Sep 27, 2017
Text intended for grant (clean copy)
Sep 27, 2017
Text intended for grant (version for approval)
Sep 5, 2017
Examination started
May 16, 2017
Notification regarding date of start of examination with possibility to withdraw
Jan 30, 2013
Notification on forthcoming publication of bibliographic data
Dec 5, 2012
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Dec 3, 2012
Communication to designated inventor
Dec 3, 2012
Communication to designated inventor
Nov 28, 2012
Priority search results copy provided by EPO
Nov 6, 2012
Copy of the international preliminary report on patentability
Sep 27, 2012
(Electronic) Receipt
Sep 27, 2012
Amended claims filed after receipt of (European) search report
Sep 27, 2012
Amended claims with annotations
Sep 27, 2012
Amendments received before examination
Sep 27, 2012
Request for entry into the European phase
Aug 31, 2012
Information on entry into European phase
Nov 16, 2011
Priority document (electronically transmitted)
Oct 27, 2011
Copy of the international search report
Oct 27, 2011
Copy of the international search report
Oct 27, 2011
Published international application - A1
Aug 25, 2011
Written opinion of the ISA, boxes No. I to VIII
Aug 25, 2011
Written opinion of the ISA, cover sheet
Aug 25, 2011
Written opinion of the ISA, supplemental box
May 5, 2011
Submission concerning representation
Mar 30, 2011
Abstract
Mar 30, 2011
Claims
Mar 30, 2011
Description
Mar 30, 2011
Drawings

EP2561295

LAIR LIQUIDE

Application Number: EP11719312A
Filing Date: Mar 30, 2011
Status: Patent Maintained As Amended; Feb 28, 2025
Publication Date: Apr 2, 2025
External Links: Slate, Register , Google Patents

IP Verse

Fuel-Fired Furnace And Method For Controlling Combustion In A Fuel-Fired Furnace

Patent Summary

Patent Family

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Dossier Documents

EP2561295