Bleaching Composition Comprising A Polyhydroxy Carboxylic Acid

Patent No. EP2658510 (titled "Bleaching Composition Comprising A Polyhydroxy Carboxylic Acid") was filed by KAO Germany on Dec 23, 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
HENKEL	Apr 16, 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
Feb 21, 2025
(Electronic) Receipt
Feb 21, 2025
French translation of claims
Feb 21, 2025
German translation of the claims
Feb 21, 2025
Letter accompanying subsequently filed items
Feb 11, 2025
Communication of bibliographic data
Feb 11, 2025
Communication with request to file translations
Feb 6, 2025
Maintenance of the patent with the documents specified in the final decision
Nov 12, 2024
Decision of the Opposition Division and instruction
Nov 7, 2024
Brief communication - Opposition proceedings
Nov 7, 2024
Druckexemplar in opposition procedure
Nov 7, 2024
Grounds for the decision (Annex) - opposition
Nov 7, 2024
Interlocutory decision in opposition proceedings
Nov 7, 2024
Means of redress
Oct 22, 2024
Consolidated list of cited opposition documents
Jun 10, 2024
Brief communication - Opposition proceedings
Jun 10, 2024
Communication inviting the parties to file observations
Mar 14, 2024
(Electronic) Receipt
Mar 14, 2024
Amended description with annotations
Mar 14, 2024
Description
Mar 14, 2024
Letter accompanying subsequently filed items
Mar 14, 2024
Reply to an examination report in opposition proceedings
Dec 19, 2023
Annex to the communication - opposition
Dec 19, 2023
Brief communication - Opposition proceedings
Dec 19, 2023
Communication inviting the parties to file observations
Nov 6, 2023
Decision of the Board of Appeal
Nov 6, 2023
F3032 Notification(s) of the decision
Aug 11, 2023
F3013 Oral Proceedings: Forwarding minutes
Aug 11, 2023
F3315 Oral Proceedings: Minutes (Appellant : Proprietor)
Jun 15, 2023
Oral proceedings: change of venue
Jun 9, 2023
(Electronic) Receipt
Jun 9, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jun 9, 2023
Letter accompanying subsequently filed items
Jun 9, 2023
Letter dealing with oral proceedings during the appeal procedure
Mar 28, 2023
Communication confirming withdrawal from representation
Mar 28, 2023
Notification of termination of representative's authorisation
Mar 22, 2023
Submission concerning change of applicant's representative
Mar 14, 2023
F3011.1 Oral Proceedings: summons
Mar 9, 2023
F3010 Oral proceedings: order for summons
Apr 6, 2022
Document concerning representation
Jun 15, 2021
(Electronic) Receipt
Jun 15, 2021
Citation in opposition procedure - 017
Jun 15, 2021
Citation in opposition procedure - 018
Jun 15, 2021
Citation in opposition procedure - 019
Jun 15, 2021
Citation in opposition procedure - 020
Jun 15, 2021
Claims
Jun 15, 2021
Claims
Jun 15, 2021
Claims
Jun 15, 2021
Claims
Jun 15, 2021
Claims
Jun 15, 2021
Claims
Jun 15, 2021
Claims
Jun 15, 2021
Claims
Jun 15, 2021
Claims
Jun 15, 2021
Claims
Jun 15, 2021
Claims
Jun 15, 2021
Claims
Jun 15, 2021
Description
Jun 15, 2021
Description
Jun 15, 2021
Description
Jun 15, 2021
Description
Jun 15, 2021
Description
Jun 15, 2021
Description
Jun 15, 2021
Letter accompanying subsequently filed items
Jun 15, 2021
Non-Patent Literature cited during the appeal procedure
Jun 15, 2021
Non-Patent Literature cited during the appeal procedure
Jun 15, 2021
Non-Patent Literature cited during the appeal procedure
Jun 15, 2021
Non-Patent Literature cited during the appeal procedure
Jun 15, 2021
Non-Patent Literature cited during the appeal procedure
Jun 15, 2021
Non-Patent Literature cited during the appeal procedure
Jun 15, 2021
Non-Patent Literature cited during the appeal procedure
Jun 15, 2021
Non-Patent Literature cited during the appeal procedure
Jun 15, 2021
Non-Patent Literature cited during the appeal procedure
Jun 15, 2021
Non-Patent Literature cited during the appeal procedure
Jun 15, 2021
Non-Patent Literature cited during the appeal procedure
Jun 15, 2021
Patent Document cited during the appeal procedure
Jun 15, 2021
Patent Document cited during the appeal procedure
Jun 15, 2021
Patent Document cited during the appeal procedure
Jun 15, 2021
Patent Document cited during the appeal procedure
Jun 15, 2021
Patent Document cited during the appeal procedure
Jun 15, 2021
Patent Document cited during the appeal procedure
Jun 15, 2021
Patent Document cited during the appeal procedure
Jun 15, 2021
Patent Document cited during the appeal procedure
Jun 15, 2021
Patent Document cited during the appeal procedure
Jun 15, 2021
Statement of grounds of appeal
May 27, 2021
F3204 Communication of the file number to the parties
Apr 29, 2021
Composition of the board (T)
Apr 13, 2021
(Electronic) Receipt
Apr 13, 2021
Letter accompanying subsequently filed items
Apr 13, 2021
Notice of appeal
Feb 26, 2021
Brief communication - Opposition proceedings
Feb 26, 2021
Brief communication - Opposition proceedings
Feb 23, 2021
(Electronic) Receipt
Feb 23, 2021
Letter accompanying subsequently filed items
Feb 23, 2021
Withdrawal of an opposition
Feb 18, 2021
Advice of delivery
Feb 17, 2021
Advice of delivery
Feb 15, 2021
Annex to the communication - opposition
Feb 15, 2021
Decision revoking the European patent
Feb 15, 2021
Grounds for the decision (Annex) - opposition
Feb 15, 2021
Internal form - Opposition/addressees
Feb 15, 2021
Internal form - Opposition/addressees
Feb 15, 2021
Means of redress
Feb 15, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Feb 15, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Feb 15, 2021
Provision of a copy of the minutes - opposition procedure
Feb 15, 2021
Scanned annex to a communication - opposition procedure
Feb 15, 2021
Scanned annex to a communication - opposition procedure
Feb 15, 2021
Transmittal of decision / summons - opposition
Feb 15, 2021
Transmittal of decision / summons - opposition
Jan 13, 2021
Information about the result of oral proceedings
Jan 12, 2021
Consolidated list of cited opposition documents
Dec 9, 2020
Brief communication - Opposition proceedings
Dec 4, 2020
(Electronic) Receipt
Dec 4, 2020
Letter accompanying subsequently filed items
Dec 4, 2020
Written submission in preparation to/during oral proceedings
Nov 30, 2020
Notification concerning the date of oral proceedings
Nov 30, 2020
Notification concerning the date of oral proceedings
Nov 18, 2020
Brief communication - Opposition proceedings
Nov 12, 2020
(Electronic) Receipt
Nov 12, 2020
Citation in opposition procedure - 012
Nov 12, 2020
Citation in opposition procedure - 013
Nov 12, 2020
Citation in opposition procedure - 014
Nov 12, 2020
Consolidated list of cited opposition documents
Nov 12, 2020
Letter accompanying subsequently filed items
Nov 12, 2020
Written submission in preparation to/during oral proceedings
Nov 2, 2020
Request for interpreters during oral proceedings
Oct 28, 2020
Brief communication - Opposition proceedings
Oct 23, 2020
Request for interpreters during oral proceedings
Oct 19, 2020
Brief communication - Opposition proceedings
Oct 13, 2020
Request for interpreters during oral proceedings
Oct 5, 2020
Notification concerning the date of oral proceedings
Oct 5, 2020
Notification concerning the date of oral proceedings
Jun 16, 2020
Advice of delivery
Jun 12, 2020
Advice of delivery
Jun 10, 2020
Acknowledgement of a document
Jun 10, 2020
Acknowledgement of a document
Jun 10, 2020
Information concerning oral proceedings
Jun 10, 2020
Summons to attend oral proceedings
Jun 10, 2020
Summons to attend oral proceedings
Jun 8, 2020
Notification concerning the date of oral proceedings
Jun 8, 2020
Notification concerning the date of oral proceedings
Jun 2, 2020
Communication of amended entries concerning the representative
May 26, 2020
Oral proceedings: reply to date proposed
May 25, 2020
Miscellaneous requests concerning client data
May 25, 2020
Submission concerning representation
Apr 20, 2020
Brief communication - Opposition proceedings
Apr 20, 2020
Invitation to file an authorisation
Apr 15, 2020
(Electronic) Receipt
Apr 15, 2020
Amended description with annotations
Apr 15, 2020
Auxiliary request during Opposition procedure - 01
Apr 15, 2020
Auxiliary request during Opposition procedure - 02
Apr 15, 2020
Auxiliary request during Opposition procedure - 03
Apr 15, 2020
Description
Apr 15, 2020
Letter accompanying subsequently filed items
Apr 15, 2020
Written submission in preparation to/during oral proceedings
Feb 11, 2020
Brief communication - Opposition proceedings
Feb 10, 2020
Request for interpreters during oral proceedings
Feb 6, 2020
Request for interpreters during oral proceedings
Jan 12, 2020
Consolidated list of cited opposition documents
Dec 11, 2019
Advice of delivery
Dec 11, 2019
Advice of delivery
Dec 10, 2019
Acknowledgement of a document
Dec 10, 2019
Acknowledgement of a document
Dec 10, 2019
Annex to the communication - opposition
Dec 10, 2019
Information concerning oral proceedings
Dec 10, 2019
Summons to attend oral proceedings
Dec 10, 2019
Summons to attend oral proceedings
Sep 20, 2019
Brief communication - Opposition proceedings
Sep 19, 2019
Any annexes (other than citation) to an opposition letter
Sep 19, 2019
Any annexes (other than citation) to an opposition letter
Sep 19, 2019
Reply of the patent proprietor to the notice(s) of opposition
Sep 16, 2019
Any annexes (other than citation) to an opposition letter
Sep 16, 2019
Any annexes (other than citation) to an opposition letter
Sep 16, 2019
Reply of the patent proprietor to the notice(s) of opposition
May 10, 2019
Communication of a notice of opposition and request to file observations
May 10, 2019
Notice of further oppositions to opponent(s)
Apr 23, 2019
Communication of a notice of opposition - first information to patent proprietor
Apr 16, 2019
(Electronic) Receipt
Apr 16, 2019
Citation in opposition procedure - 001
Apr 16, 2019
Citation in opposition procedure - 002
Apr 16, 2019
Citation in opposition procedure - 003
Apr 16, 2019
Citation in opposition procedure - 004
Apr 16, 2019
Citation in opposition procedure - 005
Apr 16, 2019
Citation in opposition procedure - 006
Apr 16, 2019
Citation in opposition procedure - 007
Apr 16, 2019
Citation in opposition procedure - 008
Apr 16, 2019
Citation in opposition procedure - 009
Apr 16, 2019
Citation in opposition procedure - 010
Apr 16, 2019
Citation in opposition procedure - 011
Apr 16, 2019
Notice of opposition
Apr 16, 2019
Notice of opposition
Aug 6, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jun 28, 2018
Decision to grant a European patent
Jun 15, 2018
(Electronic) Receipt
Jun 15, 2018
Filing of the translations of the claims
Jun 15, 2018
French translation of claims
Jun 15, 2018
German translation of the claims
Mar 9, 2018
Bibliographic data of the European patent application
Mar 9, 2018
Communication about intention to grant a European patent
Mar 9, 2018
Intention to grant (signatures)
Mar 9, 2018
Text intended for grant (clean copy)
Mar 9, 2018
Text intended for grant (version for approval)
Feb 1, 2018
Notification concerning the date of oral proceedings
Jan 22, 2018
Claims
Jan 22, 2018
Written submission in preparation to/during oral proceedings
Jan 18, 2018
Claims
Jan 18, 2018
Written submission in preparation to/during oral proceedings
Nov 20, 2017
Advice of delivery
Nov 13, 2017
Advice of delivery
Nov 13, 2017
Advice of delivery
Nov 10, 2017
Acknowledgement of a document
Nov 10, 2017
Summons to attend oral proceedings
Jul 17, 2017
Advice of delivery
Jul 17, 2017
Advice of delivery
Jul 14, 2017
Acknowledgement of a document
Jul 14, 2017
Annex to the communication
Jul 14, 2017
Preparation for oral proceedings
Jul 14, 2017
Summons to attend oral proceedings
Nov 8, 2016
Amended claims with annotations
Nov 8, 2016
Claims
Nov 8, 2016
Reply to communication from the Examining Division
Nov 4, 2016
Amended claims with annotations
Nov 4, 2016
Claims
Nov 4, 2016
Reply to communication from the Examining Division
Sep 9, 2016
Grant of extension of time limit (examination procedure)
Sep 6, 2016
Request for extension of time limit to communication from the Examining Division
Sep 5, 2016
Request for extension of time limit to communication from the Examining Division
Apr 25, 2016
Annex to the communication
Apr 25, 2016
Communication from the Examining Division
Apr 19, 2016
Examination started
Dec 30, 2014
Payment of fees and costs
Dec 30, 2014
Payment of fees and costs
Mar 22, 2014
Amended claims filed after receipt of (European) search report
Mar 22, 2014
Amendments received before examination
Mar 21, 2014
Amended claims filed after receipt of (European) search report
Mar 21, 2014
Amendments received before examination
Dec 13, 2013
(Electronic) Receipt
Dec 13, 2013
Letter accompanying subsequently filed items
Oct 9, 2013
Notification on forthcoming publication of bibliographic data
Sep 11, 2013
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Sep 4, 2013
Priority search results copy provided by EPO
Aug 22, 2013
Letter which had not been notified
Aug 2, 2013
Communication to designated inventor
Aug 2, 2013
Communication to designated inventor
Jul 17, 2013
Copy of the international preliminary report on patentability
Jul 11, 2013
(Electronic) Receipt
Jul 11, 2013
Annexes in respect of a client data request
Jul 11, 2013
Request for entry into the European phase
May 13, 2013
Information on entry into European phase
Jul 25, 2012
Priority document (electronically transmitted)
Jul 5, 2012
Copy of the international search report
Jul 5, 2012
Published international application - A1
Mar 7, 2012
Written opinion of the ISA, boxes No. I to VIII
Mar 7, 2012
Written opinion of the ISA, cover sheet
Mar 7, 2012
Written opinion of the ISA, supplemental box
Dec 23, 2011
(Electronic) Receipt
Dec 23, 2011
Abstract
Dec 23, 2011
Claims
Dec 23, 2011
Description

EP2658510

KAO GERMANY

Application Number: EP11807932A
Filing Date: Dec 23, 2011
Status: Patent Maintained As Amended; Feb 28, 2025
Publication Date: Apr 2, 2025
External Links: Slate, Register , Google Patents

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Bleaching Composition Comprising A Polyhydroxy Carboxylic Acid

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Dossier Documents

EP2658510