Leave-In Conditioning Composition For Hair

Patent No. EP2658520 (titled "Leave-In Conditioning Composition For Hair") was filed by KAO Germany on Dec 27, 2011. The application was issued on Apr 5, 2023.

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	Dec 18, 2023	-

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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Aug 6, 2025
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Aug 6, 2025
Communication to the parties concerning the termination of the opposition proceedings (opponent)
May 2, 2025
Annex to the communication - opposition
May 2, 2025
Brief communication - Opposition proceedings
May 2, 2025
Brief communication - Opposition proceedings
May 2, 2025
Decision of the Opposition Division and instruction
May 2, 2025
Decision rejecting the opposition
May 2, 2025
Decision rejecting the opposition
May 2, 2025
Grounds for the decision (Annex) - opposition
May 2, 2025
Means of redress
May 2, 2025
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
May 2, 2025
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
May 2, 2025
Provision of a copy of the minutes - opposition procedure
May 2, 2025
Provision of a copy of the minutes - opposition procedure
May 2, 2025
Scanned annex to a communication - opposition procedure
Apr 8, 2025
Information about the result of oral proceedings
Feb 24, 2025
Brief communication - Opposition proceedings
Feb 19, 2025
Request for interpreters during oral proceedings
Feb 12, 2025
Notification concerning the date of oral proceedings
Nov 27, 2024
Notification of termination of representative's authorisation
Nov 26, 2024
Brief communication - Opposition proceedings
Nov 25, 2024
Communication confirming withdrawal from representation
Nov 19, 2024
Brief communication - Opposition proceedings
Nov 18, 2024
Submission concerning change of proprietor's representative
Nov 13, 2024
(Electronic) Receipt
Nov 13, 2024
Letter accompanying subsequently filed items
Nov 13, 2024
Request for interpreters during oral proceedings
Sep 6, 2024
Annex to the communication - opposition
Sep 6, 2024
Information concerning oral proceedings
Sep 6, 2024
Scanned annex to a communication - opposition procedure
Sep 6, 2024
Summons to attend oral proceedings
Sep 6, 2024
Summons to attend oral proceedings
May 14, 2024
Brief communication - Opposition proceedings
May 8, 2024
(Electronic) Receipt
May 8, 2024
Letter accompanying subsequently filed items
May 8, 2024
Reply of the patent proprietor to the notice(s) of opposition
Jan 17, 2024
Communication of a notice of opposition and request to file observations
Jan 17, 2024
Notice of further oppositions to opponent(s)
Dec 21, 2023
Communication of a notice of opposition - first information to patent proprietor
Dec 18, 2023
(Electronic) Receipt
Dec 18, 2023
Citation in opposition procedure - 001
Dec 18, 2023
Citation in opposition procedure - 002
Dec 18, 2023
Citation in opposition procedure - 003
Dec 18, 2023
Citation in opposition procedure - 004
Dec 18, 2023
Citation in opposition procedure - 005
Dec 18, 2023
Citation in opposition procedure - 006
Dec 18, 2023
Consolidated list of cited opposition documents
Dec 18, 2023
Notice of opposition
Dec 18, 2023
Notice of opposition
Apr 18, 2023
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 10, 2023
Decision to grant a European patent
Feb 23, 2023
(Electronic) Receipt
Feb 23, 2023
Filing of the translations of the claims
Feb 23, 2023
French translation of claims
Feb 23, 2023
German translation of the claims
Feb 9, 2023
Annex to the communication about intention to grant a European patent
Feb 9, 2023
Bibliographic data of the European patent application
Feb 9, 2023
Communication about intention to grant a European patent
Feb 9, 2023
Intention to grant (signatures)
Feb 9, 2023
Text intended for grant (clean copy)
Feb 9, 2023
Text intended for grant (version for approval)
Mar 7, 2022
(Electronic) Receipt
Mar 7, 2022
Amended claims with annotations
Mar 7, 2022
Amended description with annotations
Mar 7, 2022
Claims
Mar 7, 2022
Description
Mar 7, 2022
Letter accompanying subsequently filed items
Mar 7, 2022
Reply to communication from the Examining Division
Nov 23, 2021
Annex to the communication
Nov 23, 2021
Communication from the Examining Division
Oct 18, 2021
(Electronic) Receipt
Oct 18, 2021
Claims
Oct 18, 2021
Letter accompanying subsequently filed items
Oct 18, 2021
Reply to communication from the Examining Division
Jun 10, 2021
Annex to the communication
Jun 10, 2021
Communication from the Examining Division
Sep 22, 2020
Transmittal of third party observations to applicant
Sep 17, 2020
Observations by third parties
Sep 15, 2020
(Electronic) Receipt
Sep 15, 2020
Amended claims with annotations
Sep 15, 2020
Amended description with annotations
Sep 15, 2020
Claims
Sep 15, 2020
Description
Sep 15, 2020
Letter accompanying subsequently filed items
Sep 15, 2020
Reply to communication from the Examining Division
May 7, 2020
Annex to the communication
May 7, 2020
Communication from the Examining Division
Nov 7, 2019
(Electronic) Receipt
Nov 7, 2019
Letter accompanying subsequently filed items
Nov 7, 2019
Reply from applicant/patentee regarding third party observations
Sep 19, 2019
Transmittal of third party observations to applicant
Sep 16, 2019
Observations by third parties
Mar 28, 2019
Decision to allow further processing
Mar 15, 2019
(Electronic) Receipt
Mar 15, 2019
Citation for the examination procedure
Mar 15, 2019
Claims
Mar 15, 2019
Letter accompanying subsequently filed items
Mar 15, 2019
Letter concerning fees and payments
Mar 15, 2019
Request for further processing
Mar 12, 2019
Application deemed to be withdrawn (reply to communication from Examining Division too late)
Mar 4, 2019
(Electronic) Receipt
Mar 4, 2019
Amended claims with annotations
Mar 4, 2019
Citation for the examination procedure
Mar 4, 2019
Letter accompanying subsequently filed items
Mar 4, 2019
Reply to communication from the Examining Division
Oct 22, 2018
Annex to the communication
Oct 22, 2018
Communication from the Examining Division
Apr 25, 2018
Patent document cited during the examination procedure
Apr 25, 2018
Reply to communication from the Examining Division
Apr 20, 2018
Patent document cited during the examination procedure
Apr 20, 2018
Reply to communication from the Examining Division
Feb 26, 2018
Grant of extension of time limit (examination procedure)
Feb 22, 2018
Request for extension of time limit to communication from the Examining Division
Feb 20, 2018
Request for extension of time limit to communication from the Examining Division
Nov 10, 2017
Transmittal of third party observations to applicant
Nov 3, 2017
Observations by third parties
Oct 12, 2017
Annex to the communication
Oct 12, 2017
Communication from the Examining Division
Aug 29, 2016
Amended claims with annotations
Aug 29, 2016
Claims
Aug 29, 2016
Reply to communication from the Examining Division
Aug 24, 2016
Amended claims with annotations
Aug 24, 2016
Claims
Aug 24, 2016
Reply to communication from the Examining Division
Jul 5, 2016
Annex to the communication
Jul 5, 2016
Communication from the Examining Division
Jun 29, 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 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
May 18, 2012
Written opinion of the ISA, boxes No. I to VIII
May 18, 2012
Written opinion of the ISA, cover sheet
May 18, 2012
Written opinion of the ISA, supplemental box
Dec 27, 2011
(Electronic) Receipt
Dec 27, 2011
Abstract
Dec 27, 2011
Claims
Dec 27, 2011
Description
Dec 27, 2011
Priority document (RO-procedure)

EP2658520

KAO GERMANY

Application Number: EP11802108A
Filing Date: Dec 27, 2011
Status: Opposition Rejected; Aug 8, 2025
Publication Date: Apr 5, 2023
External Links: Slate, Register , Google Patents

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Leave-In Conditioning Composition For Hair

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Dossier Documents

EP2658520