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The patent EP2658513 was granted to KAO Germany on Nov 29, 2023. The application was filed on Dec 23, 2011 under application number EP11805860A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 | Opposition Status |
|---|---|---|---|
| HENKEL | Dec 16, 2019 | LKGLOBAL LORENZ & KOPF | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE4430522 |
| INTERNATIONAL-SEARCH-REPORT | EP0928608 |
| INTERNATIONAL-SEARCH-REPORT | EP1291006 |
| INTERNATIONAL-SEARCH-REPORT | EP2204160 |
| OPPOSITION | EP2198843 |
| OPPOSITION | JP2003081790 |
| OPPOSITION | US2005196367 |
| OPPOSITION | US2010175203 |
| OPPOSITION | WO0007552 |
| OPPOSITION | WO2009019048 |
| OPPOSITION | WO9936046 |
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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Nov 3, 2023
Oct 25, 2023
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Means of redress
OPPO
May 26, 2023
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Description
OPPO
Dec 13, 2021
Dec 13, 2021
Oct 13, 2021
Oct 13, 2021
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Sep 22, 2021
Sep 2, 2021
(Electronic) Receipt
Appeal
Sep 2, 2021
Sep 2, 2021
Sep 2, 2021
Claims
Appeal
Sep 2, 2021
Sep 2, 2021
Jun 30, 2021
(Electronic) Receipt
Appeal
Jun 30, 2021
Jun 30, 2021
Notice of appeal
Appeal
Apr 28, 2021
Apr 23, 2021
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Means of redress
OPPO
Apr 23, 2021
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Apr 1, 2019
Feb 21, 2019
Decision to grant a European patent
Search/Exam
Feb 5, 2019
(Electronic) Receipt
Search/Exam
Feb 5, 2019
French translation of claims
Search/Exam
Feb 5, 2019
German translation of the claims
Search/Exam
Feb 5, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 26, 2018
Oct 26, 2018
Oct 26, 2018
Intention to grant (signatures)
Search/Exam
Oct 26, 2018
Text intended for grant (clean copy)
Search/Exam
Oct 26, 2018
Apr 23, 2018
Amended claims with annotations
Search/Exam
Apr 23, 2018
Claims
Search/Exam
Apr 23, 2018
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Apr 17, 2018
Amended claims with annotations
Search/Exam
Apr 17, 2018
Claims
Search/Exam
Apr 17, 2018
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Feb 26, 2018
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Aug 8, 2017
Annex to the communication
Search/Exam
Aug 8, 2017
Communication from the Examining Division
Search/Exam
Aug 9, 2016
Amended claims with annotations
Search/Exam
Aug 9, 2016
Claims
Search/Exam
Aug 9, 2016
Aug 5, 2016
Amended claims with annotations
Search/Exam
Aug 5, 2016
Claims
Search/Exam
Aug 5, 2016
Jun 23, 2016
Jun 21, 2016
Jun 17, 2016
Feb 8, 2016
Annex to the communication
Search/Exam
Feb 8, 2016
Communication from the Examining Division
Search/Exam
Dec 30, 2014
Payment of fees and costs
Search/Exam
Dec 30, 2014
Payment of fees and costs
Search/Exam
Mar 14, 2014
Mar 14, 2014
Amendments received before examination
Search/Exam
Mar 12, 2014
Mar 12, 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 5, 2013
Sep 2, 2013
Aug 29, 2013
Priority search results copy provided by EPO
Search/Exam
Aug 22, 2013
Letter which had not been notified
Search/Exam
Aug 2, 2013
Communication to designated inventor
Search/Exam
Aug 2, 2013
Communication to designated inventor
Search/Exam
Aug 2, 2013
Communication to designated inventor
Search/Exam
Aug 2, 2013
Communication to designated inventor
Search/Exam
Jul 17, 2013
Jul 2, 2013
(Electronic) Receipt
Search/Exam
Jul 2, 2013
Request for entry into the European phase
Search/Exam
Jul 2, 2013
May 13, 2013
Information on entry into European phase
Search/Exam
Jan 24, 2013
Copy of the international search report
Search/Exam
Jan 24, 2013
Dec 12, 2012
Dec 12, 2012
Dec 12, 2012
Jul 25, 2012
Jul 5, 2012
Published international application - A2
Search/Exam
Dec 23, 2011
(Electronic) Receipt
PCTRO
Dec 23, 2011
Abstract
PCTRO
Dec 23, 2011
Claims
PCTRO
Dec 23, 2011
Description
PCTRO
Dec 23, 2011