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The patent EP2658514 was granted to KAO Germany on Nov 24, 2021. The application was originally filed on Dec 27, 2011 under application number EP11815697A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE2521960 |
| DESCRIPTION | DE2811010 |
| DESCRIPTION | DE3044738 |
| DESCRIPTION | DE3217059 |
| DESCRIPTION | EP0337354 |
| DESCRIPTION | EP0524612 |
| DESCRIPTION | EP0640643 |
| DESCRIPTION | US3927199 |
| INTERNATIONAL-SEARCH-REPORT | DE19737604 |
| INTERNATIONAL-SEARCH-REPORT | EP1925290 |
| INTERNATIONAL-SEARCH-REPORT | EP2110119 |
| INTERNATIONAL-SEARCH-REPORT | EP2161017 |
| INTERNATIONAL-SEARCH-REPORT | EP2161018 |
| INTERNATIONAL-SEARCH-REPORT | EP2184051 |
| INTERNATIONAL-SEARCH-REPORT | EP2194096 |
| INTERNATIONAL-SEARCH-REPORT | EP2196186 |
| INTERNATIONAL-SEARCH-REPORT | EP2204160 |
| INTERNATIONAL-SEARCH-REPORT | US5756436 |
| INTERNATIONAL-SEARCH-REPORT | US5837661 |
| OPPOSITION | DE10221813 |
| OPPOSITION | US6284230 |
| OPPOSITION | WO2010054787 |
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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Oct 28, 2021
Oct 22, 2021
Oct 15, 2021
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Means of redress
OPPO
Mar 30, 2021
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Feb 8, 2021
Description
OPPO
Feb 8, 2021
Feb 8, 2021
Feb 8, 2021
Feb 4, 2021
Feb 4, 2021
Feb 4, 2021
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Dec 15, 2020
Dec 10, 2020
Dec 10, 2020
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May 7, 2019
Mar 28, 2019
Decision to grant a European patent
Search/Exam
Mar 12, 2019
(Electronic) Receipt
Search/Exam
Mar 12, 2019
Filing of the translations of the claims
Search/Exam
Mar 12, 2019
French translation of claims
Search/Exam
Mar 12, 2019
German translation of the claims
Search/Exam
Dec 10, 2018
Dec 10, 2018
Dec 10, 2018
Intention to grant (signatures)
Search/Exam
Dec 10, 2018
Text intended for grant (clean copy)
Search/Exam
Dec 10, 2018
Apr 25, 2018
Apr 25, 2018
Apr 20, 2018
Apr 20, 2018
Feb 27, 2018
Feb 21, 2018
Feb 19, 2018
Dec 20, 2017
Dec 19, 2017
Dec 14, 2017
Aug 10, 2017
Annex to the communication
Search/Exam
Aug 10, 2017
Communication from the Examining Division
Search/Exam
Oct 14, 2016
Decision to allow further processing
Search/Exam
Oct 4, 2016
Payment of fees and costs
Search/Exam
Oct 4, 2016
Request for further processing
Search/Exam
Sep 29, 2016
Payment of fees and costs
Search/Exam
Sep 29, 2016
Payment of fees and costs
Search/Exam
Sep 29, 2016
Request for further processing
Search/Exam
Jul 19, 2016
Feb 12, 2016
Annex to the communication
Search/Exam
Feb 12, 2016
Communication from the Examining Division
Search/Exam
Feb 4, 2016
Examination started
Search/Exam
Dec 30, 2014
Letter concerning fees and payments
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 concerning fees and payments
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
Jun 18, 2013
Jun 13, 2013
Copy of the international search report
Search/Exam
Jun 13, 2013
May 13, 2013
Information on entry into European phase
Search/Exam
Apr 30, 2013
Apr 30, 2013
Apr 30, 2013
Jul 25, 2012
Jul 5, 2012
Published international application - A2
Search/Exam
Dec 27, 2011
(Electronic) Receipt
PCTRO
Dec 27, 2011
Abstract
PCTRO
Dec 27, 2011
Claims
PCTRO
Dec 27, 2011
Description
PCTRO
Dec 27, 2011