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The patent EP2767526 was granted to Refractaria on Apr 29, 2020. The application was filed on Oct 11, 2012 under application number EP12840022A. 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 |
|---|---|---|---|
| REFRACTORY | Jan 21, 2021 | BERKENBRINK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | DD274207 |
| INTERNATIONAL-SEARCH-REPORT | BRPI0300289 |
| INTERNATIONAL-SEARCH-REPORT | CN1255463 |
| INTERNATIONAL-SEARCH-REPORT | KR930000839B |
| INTERNATIONAL-SEARCH-REPORT | WO2004071993 |
| OPPOSITION | CN101857449 |
| OPPOSITION | CN102584288 |
| OPPOSITION | WO9800373 |
| SEARCH | CN102584288 |
| SEARCH | GB1402988 |
| SEARCH | GB983567 |
| SEARCH | WO9800373 |
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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Feb 11, 2025
Feb 11, 2025
Feb 11, 2025
Nov 29, 2024
Nov 29, 2024
Nov 29, 2024
Oct 31, 2024
(Electronic) Receipt
Appeal
Oct 31, 2024
Oct 31, 2024
Oct 28, 2024
(Electronic) Receipt
Appeal
Oct 28, 2024
Oct 28, 2024
Oct 8, 2024
Oct 8, 2024
Sep 18, 2024
Sep 18, 2024
Sep 13, 2024
Jul 9, 2024
Jul 9, 2024
Nov 10, 2023
Nov 10, 2023
Nov 7, 2023
Aug 10, 2023
Aug 7, 2023
(Electronic) Receipt
Appeal
Aug 7, 2023
Aug 7, 2023
Aug 7, 2023
Aug 7, 2023
Aug 7, 2023
Reply to appeal
Appeal
May 4, 2023
Apr 28, 2023
(Electronic) Receipt
Appeal
Apr 28, 2023
Apr 28, 2023
Apr 28, 2023
Apr 28, 2023
Feb 27, 2023
Feb 23, 2023
Feb 23, 2023
Feb 14, 2023
(Electronic) Receipt
Appeal
Feb 14, 2023
Feb 14, 2023
Notice of appeal
Appeal
Dec 23, 2022
Dec 21, 2022
Dec 21, 2022
Dec 21, 2022
Dec 21, 2022
Dec 21, 2022
Means of redress
OPPO
Dec 21, 2022
Dec 21, 2022
Dec 21, 2022
Dec 21, 2022
Dec 21, 2022
Dec 21, 2022
Dec 16, 2022
Dec 13, 2022
Dec 13, 2022
Dec 7, 2022
Dec 7, 2022
Authorisation
OPPO
Dec 7, 2022
Nov 8, 2022
Oct 26, 2022
Oct 26, 2022
Authorisation
OPPO
Oct 26, 2022
Oct 26, 2022
Oct 6, 2022
Sep 27, 2022
Authorisation
OPPO
Sep 27, 2022
Sep 19, 2022
Sep 15, 2022
Sep 15, 2022
Sep 15, 2022
Aug 3, 2022
Jul 26, 2022
Jul 26, 2022
Jul 26, 2022
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Jun 7, 2022
Jun 7, 2022
Mar 17, 2022
Mar 14, 2022
Nov 11, 2021
Nov 5, 2021
Nov 5, 2021
Nov 5, 2021
Nov 4, 2021
Nov 4, 2021
Nov 4, 2021
Nov 4, 2021
Oct 29, 2021
Oct 28, 2021
Oct 28, 2021
Oct 28, 2021
Oct 28, 2021
Oct 28, 2021
Oct 28, 2021
Oct 14, 2021
Oct 8, 2021
Oct 8, 2021
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Jul 1, 2021
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Jul 1, 2021
Mar 9, 2021
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Mar 5, 2021
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Feb 15, 2021
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Feb 10, 2021
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Jan 27, 2021
Jan 21, 2021
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Jan 21, 2021
Jan 21, 2021
Jan 21, 2021
Jan 21, 2021
Jul 3, 2020
May 11, 2020
Apr 2, 2020
Decision to grant a European patent
Search/Exam
Mar 19, 2020
(Electronic) Receipt
Search/Exam
Mar 19, 2020
French translation of claims
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Mar 19, 2020
German translation of the claims
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Mar 19, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 29, 2019
Nov 29, 2019
Nov 29, 2019
Intention to grant (signatures)
Search/Exam
Nov 29, 2019
Text intended for grant (clean copy)
Search/Exam
Nov 29, 2019
Oct 10, 2019
(Electronic) Receipt
Search/Exam
Oct 10, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 3, 2019
(Electronic) Receipt
Search/Exam
Jul 3, 2019
Amended claims with annotations
Search/Exam
Jul 3, 2019
Amended description with annotations
Search/Exam
Jul 3, 2019
Claims
Search/Exam
Jul 3, 2019
Description
Search/Exam
Jul 3, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 3, 2019
Mar 4, 2019
Annex to the communication
Search/Exam
Mar 4, 2019
Communication from the Examining Division
Search/Exam
Dec 31, 2018
Dec 31, 2018
Dec 27, 2018
(Electronic) Receipt
Search/Exam
Dec 27, 2018
Amended claims with annotations
Search/Exam
Dec 27, 2018
Claims
Search/Exam
Dec 27, 2018
Description
Search/Exam
Dec 27, 2018
Letter accompanying subsequently filed items
Search/Exam
Dec 27, 2018
Dec 27, 2018
Oct 29, 2018
(Electronic) Receipt
Search/Exam
Oct 29, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 23, 2018
Oct 17, 2018
(Electronic) Receipt
Search/Exam
Oct 17, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 17, 2018
Jun 21, 2018
Annex to the communication
Search/Exam
Jun 21, 2018
Communication from the Examining Division
Search/Exam
Jun 13, 2018
Examination started
Search/Exam
Mar 26, 2018
Aug 31, 2017
(Electronic) Receipt
Search/Exam
Aug 31, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 2, 2016
(Electronic) Receipt
Search/Exam
Sep 2, 2016
Letter accompanying subsequently filed items
Search/Exam
Nov 27, 2015
(Electronic) Receipt
Search/Exam
Nov 27, 2015
Letter accompanying subsequently filed items
Search/Exam
Nov 27, 2015
Priority search results
Search/Exam
Nov 27, 2015
Nov 11, 2015
Oct 13, 2015
(Electronic) Receipt
Search/Exam
Oct 13, 2015
Oct 13, 2015
Amended claims with annotations
Search/Exam
Oct 13, 2015
Oct 13, 2015
Amended description with annotations
Search/Exam
Oct 13, 2015
Amendments received before examination
Search/Exam
Oct 13, 2015
Letter accompanying subsequently filed items
Search/Exam
Sep 15, 2015
(Electronic) Receipt
Search/Exam
Sep 15, 2015
Letter accompanying subsequently filed items
Search/Exam
Jun 12, 2015
Jun 12, 2015
Jun 3, 2015
(Electronic) Receipt
Search/Exam
Jun 3, 2015
Authorisation
Search/Exam
Jun 3, 2015
Letter accompanying subsequently filed items
Search/Exam
Jun 3, 2015
Apr 13, 2015
Mar 25, 2015
Mar 25, 2015
European search opinion
Search/Exam
Mar 25, 2015
Supplementary European search report
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Mar 11, 2015
Search started
Search/Exam
Feb 23, 2015
Feb 23, 2015
Feb 13, 2015
Authorisation
Search/Exam
Feb 13, 2015
Feb 9, 2015
Authorisation
Search/Exam
Feb 9, 2015
Jul 23, 2014
Notification of forthcoming publication
Search/Exam
Jun 13, 2014
May 19, 2014
Abstract
Search/Exam
May 19, 2014
Claims
Search/Exam
May 19, 2014
Communication to designated inventor
Search/Exam
May 19, 2014
Communication to designated inventor
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May 19, 2014
Description
Search/Exam
May 19, 2014
Drawings
Search/Exam
May 19, 2014
Letter concerning fees and payments
Search/Exam
May 19, 2014
Matter concerning the application
Search/Exam
May 19, 2014
Request for entry into the European phase
Search/Exam
May 15, 2014
Payment of fees and costs
Search/Exam
May 13, 2014
Matter concerning the application
Search/Exam
May 13, 2014
Request for entry into the European phase
Search/Exam
May 8, 2014
Abstract
Search/Exam
May 8, 2014
Claims
Search/Exam
May 8, 2014
Description
Search/Exam
May 8, 2014
Drawings
Search/Exam
May 8, 2014
Letter accompanying subsequently filed items
Search/Exam
May 8, 2014
Letter concerning fees and payments
Search/Exam
May 8, 2014
Matter concerning the application
Search/Exam
May 8, 2014
Matter concerning the application
Search/Exam
May 8, 2014
May 8, 2014
Payment of fees and costs
Search/Exam
May 8, 2014
Request for entry into the European phase
Search/Exam
May 8, 2014
Request for entry into the European phase
Search/Exam
Apr 30, 2014
Apr 15, 2014
Feb 21, 2014
Information on entry into European phase
Search/Exam
May 14, 2013
Apr 18, 2013
Copy of the international search report
Search/Exam
Apr 18, 2013
Apr 18, 2013
International publication pamphlet
Search/Exam