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The patent EP2658894 was granted to Akzo Nobel on Oct 19, 2022. The application was filed on Dec 23, 2011 under application number EP11805044A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| THE SHERWIN WILLIAMS | Jul 19, 2023 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB | ADMISSIBLE |
| PPG INDUSTRIES | Jul 5, 2023 | F & E PATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US5344858 |
| INTERNATIONAL-SEARCH-REPORT | GB1597610 |
| INTERNATIONAL-SEARCH-REPORT | GB2052526 |
| INTERNATIONAL-SEARCH-REPORT | US2003004231 |
| INTERNATIONAL-SEARCH-REPORT | US2007088111 |
| INTERNATIONAL-SEARCH-REPORT | US4522961 |
| OPPOSITION | US2007088111 |
| OPPOSITION | US4238573 |
| OPPOSITION | US4425451 |
| OPPOSITION | US4461857 |
| OPPOSITION | US4522961 |
| OPPOSITION | US4598109 |
| OPPOSITION | US4801628 |
| OPPOSITION | US4864000 |
| OPPOSITION | US5001173 |
| OPPOSITION | US5389704 |
| OPPOSITION | US6159549 |
| OPPOSITION | WO2006045017 |
| OPPOSITION | WO2008076211 |
| OPPOSITION | WO2012162298 |
| OPPOSITION | WO2012162299 |
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.
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Nov 2, 2022
Sep 22, 2022
Decision to grant a European patent
Search/Exam
Sep 12, 2022
(Electronic) Receipt
Search/Exam
Sep 12, 2022
French translation of claims
Search/Exam
Sep 12, 2022
German translation of the claims
Search/Exam
Sep 12, 2022
Letter accompanying subsequently filed items
Search/Exam
May 30, 2022
May 30, 2022
May 30, 2022
Intention to grant (signatures)
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May 30, 2022
Text intended for grant (clean copy)
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May 30, 2022
Apr 1, 2022
(Electronic) Receipt
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Apr 1, 2022
Letter accompanying subsequently filed items
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Apr 1, 2022
Mar 31, 2022
(Electronic) Receipt
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Mar 31, 2022
Letter accompanying subsequently filed items
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Mar 18, 2022
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Mar 18, 2022
Intention to grant (signatures)
Search/Exam
Mar 18, 2022
Text intended for grant (clean copy)
Search/Exam
Mar 18, 2022
Nov 11, 2021
Document concerning representation
Search/Exam
Nov 11, 2021
Document concerning representation
Search/Exam
Nov 11, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 29, 2021
Jul 21, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 21, 2021
Jul 17, 2018
(Electronic) Receipt
Search/Exam
Jul 17, 2018
Amended claims with annotations
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Jul 17, 2018
Claims
Search/Exam
Jul 17, 2018
Letter accompanying subsequently filed items
Search/Exam
Jul 17, 2018
Apr 4, 2018
Annex to the communication
Search/Exam
Apr 4, 2018
Communication from the Examining Division
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Nov 22, 2017
(Electronic) Receipt
Search/Exam
Nov 22, 2017
Amended claims with annotations
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Nov 22, 2017
Claims
Search/Exam
Nov 22, 2017
Letter accompanying subsequently filed items
Search/Exam
Nov 22, 2017
Jul 17, 2017
Annex to the communication
Search/Exam
Jul 17, 2017
Communication from the Examining Division
Search/Exam
Jul 4, 2017
Examination started
Search/Exam
Apr 18, 2017
Feb 26, 2014
Refund of fees
Search/Exam
Feb 18, 2014
Feb 18, 2014
Amendments received before examination
Search/Exam
Feb 14, 2014
Feb 14, 2014
Amendments received before examination
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Feb 14, 2014
Letter accompanying subsequently filed items
Search/Exam
Oct 9, 2013
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Communication to designated inventor
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Aug 2, 2013
Communication to designated inventor
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Aug 2, 2013
Communication to designated inventor
Search/Exam
Jul 30, 2013
Priority search results copy provided by EPO
Search/Exam
Jul 18, 2013
(Electronic) Receipt
Search/Exam
Jul 18, 2013
Request for entry into the European phase
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Jul 11, 2013
Jul 11, 2013
Jun 18, 2013
Notification of election of EPO
Search/Exam
Jun 14, 2013
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Information on entry into European phase
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May 8, 2013
May 8, 2013
Notification of the recording of a change
Search/Exam
May 7, 2013
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PCT demand form
PCT2
May 3, 2013
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PCT demand form
PCT2
May 3, 2013
Apr 19, 2013
PCT demand form
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Apr 19, 2013
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Mar 28, 2013
Copy of the international search report
Search/Exam
Mar 28, 2013
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Jul 5, 2012
Published international application - A2
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Apr 16, 2012
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Dec 23, 2011
(Electronic) Receipt
PCTRO
Dec 23, 2011
Abstract
PCTRO
Dec 23, 2011
Claims
PCTRO
Dec 23, 2011
Description
PCTRO
Dec 23, 2011