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The patent EP3717851 was granted to Etex Building Performance on Mar 16, 2022. The application was filed on Nov 26, 2018 under application number EP18804347A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| SAINT GOBAIN | Dec 15, 2022 | MURGITROYD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE2613512 |
| DESCRIPTION | US2012246966 |
| DESCRIPTION | US5659975 |
| DESCRIPTION | WO2016071648 |
| INTERNATIONAL-SEARCH-REPORT | DE2613512 |
| INTERNATIONAL-SEARCH-REPORT | DE4447311 |
| INTERNATIONAL-SEARCH-REPORT | EP0127761 |
| INTERNATIONAL-SEARCH-REPORT | US2722752 |
| INTERNATIONAL-SEARCH-REPORT | US4255870 |
| INTERNATIONAL-SEARCH-REPORT | WO2004109003 |
| INTERNATIONAL-SEARCH-REPORT | WO2014168559 |
| OPPOSITION | CN102401554 |
| OPPOSITION | JP2005297245 |
| OPPOSITION | US2010299956 |
| OPPOSITION | US4312136 |
| OPPOSITION | US5659975 |
| OTHER | FR2967486 |
| OTHER | US2010299956 |
| OTHER | WO9504908 |
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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Jan 8, 2026
(Electronic) Receipt
Appeal
Jan 8, 2026
Jan 8, 2026
Oct 14, 2025
Oct 14, 2025
Sep 3, 2025
Sep 3, 2025
Sep 2, 2025
Sep 1, 2025
(Electronic) Receipt
Appeal
Sep 1, 2025
Sep 1, 2025
Aug 26, 2025
(Electronic) Receipt
Appeal
Aug 26, 2025
Aug 26, 2025
Aug 26, 2025
Aug 18, 2025
(Electronic) Receipt
Appeal
Aug 18, 2025
Aug 18, 2025
Aug 18, 2025
Aug 1, 2025
Aug 1, 2025
Jul 29, 2025
Jul 29, 2025
Dec 3, 2024
Dec 2, 2024
(Electronic) Receipt
Appeal
Dec 2, 2024
Dec 2, 2024
Dec 2, 2024
Dec 2, 2024
Dec 2, 2024
Dec 2, 2024
Dec 2, 2024
Dec 2, 2024
Reply to appeal
Appeal
Jul 30, 2024
Jul 25, 2024
(Electronic) Receipt
Appeal
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
May 27, 2024
May 27, 2024
May 20, 2024
(Electronic) Receipt
Appeal
May 20, 2024
Notice of appeal
Appeal
May 20, 2024
Notice of appeal
Appeal
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Means of redress
OPPO
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Feb 8, 2024
Dec 12, 2023
Dec 9, 2023
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Jun 29, 2023
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Dec 15, 2022
Dec 15, 2022
Dec 15, 2022
Dec 15, 2022
Dec 15, 2022
Mar 29, 2022
Feb 17, 2022
Decision to grant a European patent
Search/Exam
Feb 2, 2022
(Electronic) Receipt
Search/Exam
Feb 2, 2022
Filing of the translations of the claims
Search/Exam
Feb 2, 2022
French translation of claims
Search/Exam
Feb 2, 2022
German translation of the claims
Search/Exam
Feb 2, 2022
Letter accompanying subsequently filed items
Search/Exam
Oct 7, 2021
Oct 7, 2021
Oct 7, 2021
Intention to grant (signatures)
Search/Exam
Oct 7, 2021
Text intended for grant (clean copy)
Search/Exam
Oct 7, 2021
Jun 30, 2021
Examination started
Search/Exam
Apr 8, 2021
Mar 31, 2021
Observations by third parties
Search/Exam
Mar 31, 2021
Patent document filed by a Third party
Search/Exam
Sep 9, 2020
Jul 7, 2020
Jul 3, 2020
Communication to designated inventor
Search/Exam
Jul 3, 2020
Communication to designated inventor
Search/Exam
Jun 30, 2020
Jun 30, 2020
Priority search results copy provided by EPO
Search/Exam
Jun 17, 2020
May 28, 2020
(Electronic) Receipt
Search/Exam
May 28, 2020
Request for entry into the European phase
Search/Exam
Apr 14, 2020
Information on entry into European phase
Search/Exam
Jun 24, 2019
Jun 6, 2019
Copy of the international search report
Search/Exam
Jun 6, 2019
Published international application - A1
Search/Exam
Jan 7, 2019
ISR: cited documents
PCTISA
Jan 4, 2019
Jan 4, 2019
Jan 4, 2019
Dec 4, 2018
Dec 3, 2018
Nov 28, 2018
Nov 26, 2018
(Electronic) Receipt
PCTRO
Nov 26, 2018
Abstract
PCTRO
Nov 26, 2018
Claims
PCTRO
Nov 26, 2018
Description
PCTRO
Nov 26, 2018
Nov 26, 2018
Drawings
PCTRO
Nov 26, 2018
Nov 26, 2018