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The patent EP3307575 was granted to Saint Gobain on Oct 27, 2021. The application was filed on Jun 10, 2016 under application number EP16731072A. 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 |
|---|---|---|---|
| PILKINGTON GROUP | Jul 27, 2022 | FORTT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102007059323 |
| DESCRIPTION | DE102008008758 |
| DESCRIPTION | EP1800855 |
| DESCRIPTION | EP1880243 |
| INTERNATIONAL-SEARCH-REPORT | DE102007059323 |
| INTERNATIONAL-SEARCH-REPORT | US2012094084 |
| INTERNATIONAL-SEARCH-REPORT | US2014011000 |
| INTERNATIONAL-SEARCH-REPORT | US5504622 |
| INTERNATIONAL-SEARCH-REPORT | WO2009071135 |
| OPPOSITION | US2004166288 |
| OPPOSITION | US2010314900 |
| OPPOSITION | WO2016198679 |
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 11, 2025
Refund of fees
Search/Exam
Nov 7, 2025
Nov 7, 2025
Nov 6, 2025
Nov 6, 2025
Nov 3, 2025
Oct 30, 2025
(Electronic) Receipt
Appeal
Oct 30, 2025
Oct 30, 2025
Withdrawal of an appeal
Appeal
Oct 23, 2025
Oct 23, 2025
Oct 8, 2025
Oct 7, 2025
(Electronic) Receipt
Appeal
Oct 7, 2025
Oct 7, 2025
Sep 23, 2025
Sep 18, 2025
(Electronic) Receipt
Appeal
Sep 18, 2025
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Jun 11, 2025
(Electronic) Receipt
Appeal
Jun 11, 2025
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Sep 5, 2024
(Electronic) Receipt
Appeal
Sep 5, 2024
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Reply to appeal
Appeal
May 8, 2024
May 3, 2024
(Electronic) Receipt
Appeal
May 3, 2024
May 3, 2024
Mar 7, 2024
Mar 7, 2024
Mar 1, 2024
(Electronic) Receipt
Appeal
Mar 1, 2024
Mar 1, 2024
Notice of appeal
Appeal
Jan 15, 2024
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Means of redress
OPPO
Jan 3, 2024
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Authorisation
OPPO
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Nov 9, 2021
Sep 30, 2021
Decision to grant a European patent
Search/Exam
Sep 20, 2021
(Electronic) Receipt
Search/Exam
Sep 20, 2021
English translation of the claims
Search/Exam
Sep 20, 2021
French translation of claims
Search/Exam
Sep 20, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 23, 2021
Aug 23, 2021
Aug 23, 2021
Intention to grant (signatures)
Search/Exam
Aug 23, 2021
Text intended for grant (clean copy)
Search/Exam
Aug 23, 2021
Jun 2, 2021
Examination started
Search/Exam
May 11, 2020
May 5, 2020
Letter accompanying subsequently filed items
Search/Exam
May 5, 2020
May 5, 2020
Aug 2, 2018
(Electronic) Receipt
Search/Exam
Aug 2, 2018
Aug 2, 2018
Amended claims with annotations
Search/Exam
Aug 2, 2018
Aug 2, 2018
Amended description with annotations
Search/Exam
Aug 2, 2018
Amendments received before examination
Search/Exam
Aug 2, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 21, 2018
Feb 26, 2018
Feb 21, 2018
Feb 15, 2018
Letter which had not been notified
Search/Exam
Jan 23, 2018
Jan 19, 2018
Communication to designated inventor
Search/Exam
Jan 19, 2018
Communication to designated inventor
Search/Exam
Jan 16, 2018
Priority search results copy provided by EPO
Search/Exam
Jan 4, 2018
Jan 3, 2018
(Electronic) Receipt
Search/Exam
Jan 3, 2018
Request for entry into the European phase
Search/Exam
Oct 20, 2017
Information on entry into European phase
Search/Exam
Jan 3, 2017
Dec 15, 2016
Copy of the international search report
Search/Exam
Dec 15, 2016
Published international application - A1
Search/Exam
Nov 16, 2016
Oct 28, 2016
Sep 21, 2016
ISR: cited documents
PCTISA
Sep 21, 2016
Sep 20, 2016
Sep 20, 2016
Sep 20, 2016
Jul 5, 2016
Jun 24, 2016
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Jun 10, 2016
(Electronic) Receipt
PCTRO
Jun 10, 2016
Abstract
PCTRO
Jun 10, 2016
Claims
PCTRO
Jun 10, 2016
Description
PCTRO
Jun 10, 2016
Jun 10, 2016
Drawings
PCTRO
Jun 10, 2016
Jun 10, 2016