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Method For Preventing Chlorine Deposition On The Heat- Transferring Surfaces Of A Boiler

Patent No. EP1891187 (titled "Method For Preventing Chlorine Deposition On The Heat- Transferring Surfaces Of A Boiler") was filed by Kemira OYJ on Jun 12, 2006. The application was issued on Dec 7, 2016.

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
VATTENFALL	Sep 7, 2017	BRANN

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 30, 2023
Termination of the opposition proceedings with revocation of patent
Jan 26, 2023
Decision of the Board of Appeal
Jan 26, 2023
F3032 Notification(s) of the decision
Jan 26, 2023
F3032 Notification(s) of the decision
Jan 17, 2023
F3013 Oral Proceedings: Forwarding minutes
Jan 17, 2023
F3013 Oral Proceedings: Forwarding minutes
Jan 17, 2023
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Jan 10, 2023
F3345 Forwarding of submissions to parties
Jan 9, 2023
(Electronic) Receipt
Jan 9, 2023
Citation in appeal procedure - 044
Jan 9, 2023
Letter accompanying subsequently filed items
Jan 9, 2023
Letter dealing with oral proceedings during the appeal procedure
Jan 3, 2023
(Electronic) Receipt
Jan 3, 2023
F3345 Forwarding of submissions to parties
Jan 3, 2023
Letter accompanying subsequently filed items
Jan 3, 2023
Letter dealing with oral proceedings during the appeal procedure
Jun 28, 2022
Communication of amended entries in the Register of European Patents
Jun 28, 2022
F3345 Forwarding of submissions to parties
Jun 13, 2022
Request concerning representative opponent
Dec 13, 2021
F3011.1 Oral Proceedings: summons
Dec 13, 2021
F3011.1 Oral Proceedings: summons
Dec 13, 2021
F3350 Communication regarding oral proceedings (art. 15 Rules of Procedure of the Boards of Appeal)
Dec 8, 2021
F3010 Oral proceedings: order for summons
Apr 14, 2021
Composition of the board (T)
Jan 16, 2020
F3345 Forwarding of submissions to parties
Jan 14, 2020
F3057 Communication: Change of responsibility of a Board of Appeal
Jan 14, 2020
F3057 Communication: Change of responsibility of a Board of Appeal
Jan 13, 2020
(Electronic) Receipt
Jan 13, 2020
Letter accompanying subsequently filed items
Jan 13, 2020
Reply to appeal
Jan 10, 2020
(Electronic) Receipt
Jan 10, 2020
Letter accompanying subsequently filed items
Jan 10, 2020
Reply to appeal
Sep 6, 2019
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Aug 30, 2019
(Electronic) Receipt
Aug 30, 2019
Cited document during appeal procedure
Aug 30, 2019
Cited document during appeal procedure
Aug 30, 2019
Cited document during appeal procedure
Aug 30, 2019
Cited document during appeal procedure
Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
Cited document during appeal procedure
Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
Cited document during appeal procedure
Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
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Aug 30, 2019
Cited document during appeal procedure
Aug 30, 2019
Cited document during appeal procedure
Aug 30, 2019
Cited document during appeal procedure
Aug 30, 2019
Letter accompanying subsequently filed items
Aug 30, 2019
Statement of grounds of appeal
Jun 26, 2019
F3204 Communication of the file number to the parties
Jun 26, 2019
F3204 Communication of the file number to the parties
Jun 19, 2019
(Electronic) Receipt
Jun 19, 2019
Letter accompanying subsequently filed items
Jun 19, 2019
Notice of appeal
Jun 19, 2019
Processing of an appeal
May 14, 2019
Advice of delivery
May 13, 2019
Advice of delivery
May 9, 2019
Advice of delivery
May 6, 2019
Advice of delivery
Apr 30, 2019
Acknowledgement of a document
Apr 30, 2019
Acknowledgement of a document
Apr 30, 2019
Annex to the communication - opposition
Apr 30, 2019
Decision of the Opposition Division and instruction
Apr 30, 2019
Decision rejecting the opposition
Apr 30, 2019
Grounds for the decision (Annex) - opposition
Apr 30, 2019
Internal form - Opposition/addressees
Apr 30, 2019
Internal form - Opposition/addressees
Apr 30, 2019
Means of redress
Apr 30, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 30, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 30, 2019
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Apr 30, 2019
Provision of a copy of the minutes - opposition procedure
Mar 18, 2019
Information about the result of oral proceedings
Feb 1, 2019
Brief communication - Opposition proceedings
Jan 29, 2019
(Electronic) Receipt
Jan 29, 2019
Letter accompanying subsequently filed items
Jan 29, 2019
Written submission in preparation to/during oral proceedings
Jan 24, 2019
Brief communication - Opposition proceedings
Jan 24, 2019
Brief communication - Opposition proceedings
Jan 18, 2019
(Electronic) Receipt
Jan 18, 2019
(Electronic) Receipt
Jan 18, 2019
Authorisation
Jan 18, 2019
Brief communication - Opposition proceedings
Jan 18, 2019
Citation in opposition procedure
Jan 18, 2019
Citation in opposition procedure
Jan 18, 2019
Letter accompanying subsequently filed items
Jan 18, 2019
Letter accompanying subsequently filed items
Jan 18, 2019
Non-patent literature cited during the opposition procedure
Jan 18, 2019
Non-patent literature cited during the opposition procedure
Jan 18, 2019
Non-patent literature cited during the opposition procedure
Jan 18, 2019
Non-patent literature cited during the opposition procedure
Jan 18, 2019
Translation of the evidence during Opposition procedure
Jan 18, 2019
Translation of the evidence during Opposition procedure
Jan 18, 2019
Written submission in preparation to/during oral proceedings
Jan 18, 2019
Written submission in preparation to/during oral proceedings
Jan 18, 2019
Written submission in preparation to/during oral proceedings
Jan 17, 2019
Brief communication - Opposition proceedings
Jan 14, 2019
(Electronic) Receipt
Jan 14, 2019
Letter accompanying subsequently filed items
Jan 14, 2019
Request for interpreters during oral proceedings
Jan 11, 2019
(Electronic) Receipt
Jan 11, 2019
Letter accompanying subsequently filed items
Jan 11, 2019
Written submission in preparation to/during oral proceedings
Jan 11, 2019
Written submission in preparation to/during oral proceedings
Aug 20, 2018
Advice of delivery
Aug 13, 2018
Advice of delivery
Aug 10, 2018
Advice of delivery
Aug 2, 2018
Advice of delivery
Jul 26, 2018
Preparation for oral proceedings
Jun 20, 2018
Brief communication - Opposition proceedings
Jun 14, 2018
(Electronic) Receipt
Jun 14, 2018
Citation in opposition procedure
Jun 14, 2018
Letter accompanying subsequently filed items
Jun 14, 2018
Letter regarding the opposition procedure (no time limit)
Jun 14, 2018
Non-patent literature cited during the opposition procedure
Jun 14, 2018
Non-patent literature cited during the opposition procedure
Jun 14, 2018
Patent document cited during the opposition procedure
Jun 14, 2018
Translation of the evidence during Opposition procedure
Feb 15, 2018
Brief communication - Opposition proceedings
Feb 9, 2018
(Electronic) Receipt
Feb 9, 2018
Citation in opposition procedure
Feb 9, 2018
Letter accompanying subsequently filed items
Feb 9, 2018
Non-patent literature cited during the opposition procedure
Feb 9, 2018
Non-patent literature cited during the opposition procedure
Feb 9, 2018
Non-patent literature cited during the opposition procedure
Feb 9, 2018
Patent document cited during the opposition procedure
Feb 9, 2018
Patent document cited during the opposition procedure
Feb 9, 2018
Patent document cited during the opposition procedure
Feb 9, 2018
Patent document cited during the opposition procedure
Feb 9, 2018
Reply of the patent proprietor to the notice(s) of opposition
Oct 12, 2017
Communication of a notice of opposition and request to file observations
Oct 12, 2017
Notice of further oppositions to opponent(s)
Sep 18, 2017
Communication of a notice of opposition - first information to patent proprietor
Sep 7, 2017
(Electronic) Receipt
Sep 7, 2017
Citation in opposition procedure
Sep 7, 2017
Citation in opposition procedure
Sep 7, 2017
Citation in opposition procedure
Sep 7, 2017
Citation in opposition procedure
Sep 7, 2017
Citation in opposition procedure
Sep 7, 2017
Citation in opposition procedure
Sep 7, 2017
Letter regarding the opposition procedure (no time limit)
Sep 7, 2017
Non-patent literature cited during the opposition procedure
Sep 7, 2017
Non-patent literature cited during the opposition procedure
Sep 7, 2017
Non-patent literature cited during the opposition procedure
Sep 7, 2017
Non-patent literature cited during the opposition procedure
Sep 7, 2017
Non-patent literature cited during the opposition procedure
Sep 7, 2017
Non-patent literature cited during the opposition procedure
Sep 7, 2017
Non-patent literature cited during the opposition procedure
Sep 7, 2017
Non-patent literature cited during the opposition procedure
Sep 7, 2017
Non-patent literature cited during the opposition procedure
Sep 7, 2017
Non-patent literature cited during the opposition procedure
Sep 7, 2017
Notice of opposition
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Translation of the evidence during Opposition procedure
Dec 7, 2016
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Nov 10, 2016
Decision to grant a European patent
Oct 25, 2016
(Electronic) Receipt
Oct 25, 2016
Filing of the translations of the claims
Oct 25, 2016
French translation of claims
Oct 25, 2016
German translation of the claims
Oct 25, 2016
Letter accompanying subsequently filed items
Jun 30, 2016
Bibliographic data of the European patent application
Jun 30, 2016
Communication about intention to grant a European patent
Jun 30, 2016
Intention to grant (signatures)
Jun 30, 2016
Text intended for grant (clean copy)
Jun 30, 2016
Text intended for grant (version for approval)
Jan 29, 2016
Communication of the registration of a transfer or change of name and/or address
Jan 12, 2016
Matter concerning the application
Jan 12, 2016
Non-patent literature cited during the examination procedure
Jan 12, 2016
Non-scannable object
Jan 12, 2016
Non-scannable object
Dec 28, 2015
(Electronic) Receipt
Dec 28, 2015
Letter accompanying subsequently filed items
Dec 28, 2015
Non-patent literature cited during the examination procedure
Dec 28, 2015
Non-patent literature cited during the examination procedure
Dec 28, 2015
Reply to communication from the Examining Division
Dec 2, 2015
(Electronic) Receipt
Dec 2, 2015
Annexes in respect of a client data request
Dec 2, 2015
Letter accompanying subsequently filed items
Dec 2, 2015
Submission concerning change of applicant's name
Nov 6, 2015
(Electronic) Receipt
Nov 6, 2015
Letter accompanying subsequently filed items
Nov 6, 2015
Reply to communication from the Examining Division
Sep 3, 2015
Grant of extension of time limit (examination procedure)
Aug 28, 2015
(Electronic) Receipt
Aug 28, 2015
Letter accompanying subsequently filed items
Aug 28, 2015
Request for extension of time limit to communication from the Examining Division
May 4, 2015
Annex to the communication
May 4, 2015
Communication from the Examining Division
May 27, 2014
Communication of amended entries concerning the representative
May 23, 2014
Submission concerning change of applicant's representative
May 21, 2014
Submission concerning change of applicant's representative
Mar 26, 2014
(Electronic) Receipt
Mar 26, 2014
Amended claims with annotations
Mar 26, 2014
Claims
Mar 26, 2014
Letter accompanying subsequently filed items
Mar 26, 2014
Non-patent literature cited during the examination procedure
Mar 26, 2014
Non-patent literature cited during the examination procedure
Mar 26, 2014
Reply to communication from the Examining Division
Jan 2, 2014
Grant of extension of time limit (examination procedure)
Dec 17, 2013
(Electronic) Receipt
Dec 17, 2013
Letter accompanying subsequently filed items
Dec 17, 2013
Request for extension of time limit to communication from the Examining Division
Nov 26, 2013
Annex to the communication
Nov 26, 2013
Consultation by telephone/in person
Nov 26, 2013
Result of consultation by telephone/in person
Sep 18, 2013
Annex to the communication
Sep 18, 2013
Communication from the Examining Division
Jul 1, 2013
(Electronic) Receipt
Jul 1, 2013
Amended claims with annotations
Jul 1, 2013
Claims
Jul 1, 2013
Claims
Jul 1, 2013
Letter accompanying subsequently filed items
Jul 1, 2013
Non-patent literature cited during the examination procedure
Jul 1, 2013
Reply to communication from the Examining Division
May 7, 2013
Grant of extension of time limit (examination procedure)
Apr 30, 2013
(Electronic) Receipt
Apr 30, 2013
Letter accompanying subsequently filed items
Apr 30, 2013
Request for extension of time limit to communication from the Examining Division
Jan 8, 2013
Annex to the communication
Jan 8, 2013
Communication from the Examining Division
Nov 26, 2012
(Electronic) Receipt
Nov 26, 2012
Amended claims filed after receipt of (European) search report
Nov 26, 2012
Amended claims with annotations
Nov 26, 2012
Amendments received before examination
Nov 26, 2012
Letter accompanying subsequently filed items
May 22, 2012
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
May 4, 2012
Communication regarding the transmission of the European search report
May 4, 2012
European search opinion
May 4, 2012
Supplementary European search report
Jan 4, 2012
Communication to applicant regarding observations by third parties
Dec 30, 2011
Acknowledgement of receipt of observations by third party
Dec 5, 2011
Citation filed by a third party
Dec 5, 2011
Observations by third parties
Dec 5, 2011
Patent document filed by a Third party
Apr 24, 2008
(Electronic) Receipt
Apr 24, 2008
Amended claims filed after receipt of (European) search report
Apr 24, 2008
Amendments received before examination
Apr 24, 2008
Letter accompanying subsequently filed items
Apr 8, 2008
Communication regarding possible amendment of claims/payment of claims fees
Jan 30, 2008
Notification on forthcoming publication of bibliographic data
Jan 3, 2008
(Electronic) Receipt
Jan 3, 2008
Annex
Jan 3, 2008
Annex
Jan 3, 2008
Annex
Jan 3, 2008
Annex
Jan 3, 2008
Annex
Jan 3, 2008
Request for entry into the European phase
Jan 2, 2008
Copy of the international preliminary examination report
Nov 21, 2007
Notification of the recording of a change
Nov 21, 2007
Notification of the recording of a change
Oct 26, 2007
Information on entry into European phase
Oct 25, 2007
Notification of the recording of a change
Feb 20, 2007
Notification of election of EPO
Feb 8, 2007
Claims filed under Art.19 PCT
Feb 8, 2007
Corrected international publication (Pamphlet)
Jan 9, 2007
Priority document (electronically transmitted)
Jan 9, 2007
Priority document (electronically transmitted)
Dec 21, 2006
Copy of the international search report
Dec 21, 2006
Published international application - A1

EP1891187

KEMIRA OYJ

Application Number: EP06755414A
Filing Date: Jun 12, 2006
Status: Revoked; Jan 30, 2023
Publication Date: Dec 7, 2016
External Links: Slate, Register , Google Patents