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The patent EP3233491 was granted to Saint Gobain on Feb 12, 2025. The application was filed on Oct 14, 2015 under application number EP15777975A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| LEONHARD KURZ STIFTUNG | Feb 21, 2020 | ZINSINGER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2013050208 |
| INTERNATIONAL-SEARCH-REPORT | EP2689929 |
| INTERNATIONAL-SEARCH-REPORT | FR2971969 |
| INTERNATIONAL-SEARCH-REPORT | WO2007081915 |
| OPPOSITION | DE19940244 |
| OPPOSITION | EP1424709 |
| OPPOSITION | EP2078618 |
| OPPOSITION | US4350550 |
| OPPOSITION | WO2012083007 |
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 16, 2025
Jan 16, 2025
Dec 27, 2024
Dec 27, 2024
Dec 27, 2024
Dec 27, 2024
Nov 6, 2024
Nov 6, 2024
Nov 6, 2024
Nov 4, 2024
Refund of fees
Appeal
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 28, 2024
Oct 24, 2024
(Electronic) Receipt
Appeal
Oct 24, 2024
Oct 24, 2024
Oct 24, 2024
Withdrawal of an appeal
Appeal
Oct 23, 2024
Oct 18, 2024
(Electronic) Receipt
Appeal
Oct 18, 2024
Oct 18, 2024
Jul 17, 2024
Jul 17, 2024
Jan 23, 2024
Jan 17, 2024
(Electronic) Receipt
Appeal
Jan 17, 2024
(Electronic) Receipt
Appeal
Jan 17, 2024
Advice of delivery
Appeal
Jan 17, 2024
Jan 17, 2024
Jan 17, 2024
Oct 25, 2023
Oct 25, 2023
Oct 20, 2023
Jul 24, 2023
Jul 24, 2023
Jul 19, 2023
Dec 22, 2022
Dec 19, 2022
(Electronic) Receipt
Appeal
Dec 19, 2022
Dec 19, 2022
Reply to appeal
Appeal
Dec 14, 2022
Nov 18, 2022
Aug 11, 2022
Aug 5, 2022
(Electronic) Receipt
Appeal
Aug 5, 2022
Aug 5, 2022
Jun 3, 2022
Jun 3, 2022
May 31, 2022
(Electronic) Receipt
Appeal
May 31, 2022
May 31, 2022
Notice of appeal
Appeal
May 30, 2022
(Electronic) Receipt
Appeal
May 30, 2022
May 30, 2022
Notice of appeal
Appeal
Apr 11, 2022
Apr 4, 2022
Mar 31, 2022
Mar 31, 2022
Mar 31, 2022
Mar 31, 2022
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Mar 31, 2022
Means of redress
OPPO
Mar 31, 2022
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Jun 3, 2019
Apr 26, 2019
Decision to grant a European patent
Search/Exam
Apr 8, 2019
(Electronic) Receipt
Search/Exam
Apr 8, 2019
English translation of the claims
Search/Exam
Apr 8, 2019
Filing of the translations of the claims
Search/Exam
Apr 8, 2019
French translation of claims
Search/Exam
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Intention to grant (signatures)
Search/Exam
Nov 29, 2018
Text intended for grant (clean copy)
Search/Exam
Nov 29, 2018
Oct 17, 2018
Examination started
Search/Exam
Feb 23, 2018
(Electronic) Receipt
Search/Exam
Feb 23, 2018
Feb 23, 2018
Amended claims with annotations
Search/Exam
Feb 23, 2018
Feb 23, 2018
Amended description with annotations
Search/Exam
Feb 23, 2018
Amendments received before examination
Search/Exam
Feb 23, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 7, 2017
Oct 31, 2017
Letter which had not been notified
Search/Exam
Sep 27, 2017
Sep 6, 2017
Refund of fees
Search/Exam
Aug 18, 2017
Aug 16, 2017
Communication to designated inventor
Search/Exam
Aug 16, 2017
Communication to designated inventor
Search/Exam
Aug 16, 2017
Communication to designated inventor
Search/Exam
Aug 16, 2017
Communication to designated inventor
Search/Exam
Aug 10, 2017
Priority search results copy provided by EPO
Search/Exam
Jul 7, 2017
(Electronic) Receipt
Search/Exam
Jul 7, 2017
Request for entry into the European phase
Search/Exam
Jul 4, 2017
May 2, 2017
Information on entry into European phase
Search/Exam
Jul 12, 2016
Jun 23, 2016
Copy of the international search report
Search/Exam
Jun 23, 2016
Copy of the international search report
Search/Exam
Jun 23, 2016
Published international application - A1
Search/Exam
Jan 19, 2016
ISR: cited documents
PCTISA
Jan 19, 2016
Jan 18, 2016
Jan 18, 2016
Jan 18, 2016
Oct 22, 2015
Oct 20, 2015
Oct 16, 2015
Oct 14, 2015
(Electronic) Receipt
PCTRO
Oct 14, 2015
Abstract
PCTRO
Oct 14, 2015
Claims
PCTRO
Oct 14, 2015
Description
PCTRO
Oct 14, 2015
Oct 14, 2015
Drawings
PCTRO
Oct 14, 2015
Oct 14, 2015