The patent EP2658520 was granted to KAO Germany on Apr 5, 2023. The application was originally filed on Dec 27, 2011 under application number EP11802108A. The patent is currently recorded with a legal status of "Opposition Rejected".

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | WO0222085 |
| INTERNATIONAL-SEARCH-REPORT | EP1518537 |
| INTERNATIONAL-SEARCH-REPORT | FR2940072 |
| INTERNATIONAL-SEARCH-REPORT | GB2071495 |
| INTERNATIONAL-SEARCH-REPORT | US2008096786 |
| OPPOSITION | DE102004030886 |
| OPPOSITION | DE102009009593 |
| OPPOSITION | DE19950219 |
| OPPOSITION | EP0941045 |
| OPPOSITION | EP1428497 |
| OPPOSITION | EP1502578 |
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
| Citation Phase | Reference Text |
|---|---|
| DESCRIPTION | - Hagers Handbuch der pharmazeutischen Praxis |
| INTERNATIONAL-SEARCH-REPORT | - "Technical Information Luviquat Sensation, Conditioning polymer for rinse-off applications", (200806), pages 1 - 8, TECHNICAL INFORMATION, URL: http://www.personal-care.basf.com/pdf/Statements/Technical%20Informat ions/EN/Cosmetic%20Ingredients/04_080301e_Luviquat%20Sensation.pdf, (20100125), XP002565613 [Y] 1-15 * the whole document * |
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Date
Description
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Aug 6, 2025
Aug 6, 2025
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Means of redress
OPPO
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Apr 18, 2023
Mar 10, 2023
Decision to grant a European patent
Search/Exam
Feb 23, 2023
(Electronic) Receipt
Search/Exam
Feb 23, 2023
Filing of the translations of the claims
Search/Exam
Feb 23, 2023
French translation of claims
Search/Exam
Feb 23, 2023
German translation of the claims
Search/Exam
Feb 9, 2023
Feb 9, 2023
Feb 9, 2023
Feb 9, 2023
Intention to grant (signatures)
Search/Exam
Feb 9, 2023
Text intended for grant (clean copy)
Search/Exam
Feb 9, 2023
Mar 7, 2022
(Electronic) Receipt
Search/Exam
Mar 7, 2022
Amended claims with annotations
Search/Exam
Mar 7, 2022
Amended description with annotations
Search/Exam
Mar 7, 2022
Claims
Search/Exam
Mar 7, 2022
Description
Search/Exam
Mar 7, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 7, 2022
Nov 23, 2021
Annex to the communication
Search/Exam
Nov 23, 2021
Communication from the Examining Division
Search/Exam
Oct 18, 2021
(Electronic) Receipt
Search/Exam
Oct 18, 2021
Claims
Search/Exam
Oct 18, 2021
Letter accompanying subsequently filed items
Search/Exam
Oct 18, 2021
Jun 10, 2021
Annex to the communication
Search/Exam
Jun 10, 2021
Communication from the Examining Division
Search/Exam
Sep 22, 2020
Sep 17, 2020
Observations by third parties
Search/Exam
Sep 15, 2020
(Electronic) Receipt
Search/Exam
Sep 15, 2020
Amended claims with annotations
Search/Exam
Sep 15, 2020
Amended description with annotations
Search/Exam
Sep 15, 2020
Claims
Search/Exam
Sep 15, 2020
Description
Search/Exam
Sep 15, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 15, 2020
May 7, 2020
Annex to the communication
Search/Exam
May 7, 2020
Communication from the Examining Division
Search/Exam
Nov 7, 2019
(Electronic) Receipt
Search/Exam
Nov 7, 2019
Letter accompanying subsequently filed items
Search/Exam
Nov 7, 2019
Sep 19, 2019
Sep 16, 2019
Observations by third parties
Search/Exam
Mar 28, 2019
Decision to allow further processing
Search/Exam
Mar 15, 2019
(Electronic) Receipt
Search/Exam
Mar 15, 2019
Citation for the examination procedure
Search/Exam
Mar 15, 2019
Claims
Search/Exam
Mar 15, 2019
Letter accompanying subsequently filed items
Search/Exam
Mar 15, 2019
Letter concerning fees and payments
Search/Exam
Mar 15, 2019
Request for further processing
Search/Exam
Mar 12, 2019
Mar 4, 2019
(Electronic) Receipt
Search/Exam
Mar 4, 2019
Amended claims with annotations
Search/Exam
Mar 4, 2019
Citation for the examination procedure
Search/Exam
Mar 4, 2019
Letter accompanying subsequently filed items
Search/Exam
Mar 4, 2019
Oct 22, 2018
Annex to the communication
Search/Exam
Oct 22, 2018
Communication from the Examining Division
Search/Exam
Apr 25, 2018
Apr 25, 2018
Apr 20, 2018
Apr 20, 2018
Feb 26, 2018
Feb 22, 2018
Feb 20, 2018
Nov 10, 2017
Nov 3, 2017
Observations by third parties
Search/Exam
Oct 12, 2017
Annex to the communication
Search/Exam
Oct 12, 2017
Communication from the Examining Division
Search/Exam
Aug 29, 2016
Amended claims with annotations
Search/Exam
Aug 29, 2016
Claims
Search/Exam
Aug 29, 2016
Aug 24, 2016
Amended claims with annotations
Search/Exam
Aug 24, 2016
Claims
Search/Exam
Aug 24, 2016
Jul 5, 2016
Annex to the communication
Search/Exam
Jul 5, 2016
Communication from the Examining Division
Search/Exam
Jun 29, 2016
Examination started
Search/Exam
Dec 30, 2014
Payment of fees and costs
Search/Exam
Dec 30, 2014
Payment of fees and costs
Search/Exam
Mar 22, 2014
Mar 22, 2014
Amendments received before examination
Search/Exam
Mar 21, 2014
Mar 21, 2014
Amendments received before examination
Search/Exam
Dec 13, 2013
(Electronic) Receipt
Search/Exam
Dec 13, 2013
Letter accompanying subsequently filed items
Search/Exam
Oct 9, 2013
Sep 11, 2013
Sep 4, 2013
Priority search results copy provided by EPO
Search/Exam
Aug 2, 2013
Communication to designated inventor
Search/Exam
Aug 2, 2013
Communication to designated inventor
Search/Exam
Jul 17, 2013
Jul 11, 2013
(Electronic) Receipt
Search/Exam
Jul 11, 2013
Annexes in respect of a client data request
Search/Exam
Jul 11, 2013
Request for entry into the European phase
Search/Exam
May 13, 2013
Information on entry into European phase
Search/Exam
Jul 25, 2012
Jul 5, 2012
Copy of the international search report
Search/Exam
Jul 5, 2012
Published international application - A1
Search/Exam
May 18, 2012
May 18, 2012
May 18, 2012
Dec 27, 2011
(Electronic) Receipt
PCTRO
Dec 27, 2011
Abstract
PCTRO
Dec 27, 2011
Claims
PCTRO
Dec 27, 2011
Description
PCTRO
Dec 27, 2011