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The patent EP2823689 was granted to Saint Gobain on Jan 29, 2025. The application was filed on Feb 6, 2013 under application number EP13703378A. 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 |
|---|---|---|---|
| EICHENAUER HEIZELEMENTE | Jul 17, 2019 | HOFSTETTER | WITHDRAWN |
| VOLKSWAGEN | Jul 16, 2019 | LIEBL | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE10156850 |
| DESCRIPTION | DE102004054161 |
| DESCRIPTION | EP1605729 |
| DESCRIPTION | US2011204037 |
| DESCRIPTION | WO2004020250 |
| DESCRIPTION | WO2011088330 |
| INTERNATIONAL-SEARCH-REPORT | DE102006007343 |
| INTERNATIONAL-SEARCH-REPORT | DE102007012993 |
| INTERNATIONAL-SEARCH-REPORT | DE102009026021 |
| INTERNATIONAL-SEARCH-REPORT | US2011204037 |
| INTERNATIONAL-SEARCH-REPORT | WO2004020250 |
| OPPOSITION | DE102008050320 |
| OPPOSITION | DE10224692 |
| OPPOSITION | DE10233348 |
| OPPOSITION | DE4006174 |
| OPPOSITION | DE4202121 |
| OPPOSITION | DE4436087 |
| OPPOSITION | EP1724568 |
| OPPOSITION | EP1986887 |
| OPPOSITION | EP2644005 |
| OPPOSITION | JP2008083298 |
| OPPOSITION | US2011204037 |
| OPPOSITION | WO2004020250 |
| OPPOSITION | WO2005090124 |
| OPPOSITION | WO2010037500 |
| OPPOSITION | WO2012069115 |
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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Jun 3, 2025
May 15, 2025
Annexes in respect of a client data request
Search/Exam
May 15, 2025
Jan 8, 2025
Dec 23, 2024
Dec 23, 2024
Dec 23, 2024
Dec 23, 2024
Sep 25, 2024
Refund of fees
Appeal
Sep 25, 2024
Refund of fees
Appeal
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 18, 2024
Sep 18, 2024
Sep 18, 2024
Sep 9, 2024
Sep 6, 2024
(Electronic) Receipt
Appeal
Sep 6, 2024
Sep 6, 2024
Aug 16, 2024
Aug 16, 2024
Aug 12, 2024
(Electronic) Receipt
Appeal
Aug 12, 2024
Aug 12, 2024
Aug 9, 2024
(Electronic) Receipt
Appeal
Aug 9, 2024
Aug 9, 2024
Dec 6, 2023
Dec 6, 2023
Dec 1, 2023
Nov 29, 2023
Nov 27, 2023
Nov 24, 2023
(Electronic) Receipt
Appeal
Nov 24, 2023
Nov 24, 2023
Nov 22, 2023
(Electronic) Receipt
Appeal
Nov 22, 2023
Nov 22, 2023
Nov 3, 2023
Nov 3, 2023
Nov 3, 2023
Oct 30, 2023
Jan 31, 2023
Jan 31, 2023
Jan 31, 2023
Oct 14, 2022
Refund of fees
Appeal
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Sep 26, 2022
Sep 26, 2022
Sep 22, 2022
Sep 21, 2022
(Electronic) Receipt
Appeal
Sep 21, 2022
Sep 21, 2022
Feb 17, 2022
Feb 17, 2022
Feb 15, 2022
Feb 15, 2022
Feb 14, 2022
(Electronic) Receipt
Appeal
Feb 14, 2022
Feb 14, 2022
Feb 10, 2022
(Electronic) Receipt
Appeal
Feb 10, 2022
Feb 10, 2022
Feb 10, 2022
Jan 21, 2022
Jan 21, 2022
Jan 21, 2022
Jan 21, 2022
Jan 18, 2022
(Electronic) Receipt
Appeal
Jan 18, 2022
Jan 18, 2022
Jan 14, 2022
(Electronic) Receipt
Appeal
Jan 14, 2022
Jan 14, 2022
Reply to appeal
Appeal
Jan 13, 2022
Jan 13, 2022
Jan 7, 2022
(Electronic) Receipt
Appeal
Jan 7, 2022
Jan 7, 2022
Reply to appeal
Appeal
Sep 9, 2021
Sep 9, 2021
Sep 9, 2021
Aug 25, 2021
(Electronic) Receipt
Appeal
Aug 25, 2021
Aug 25, 2021
Aug 25, 2021
Claims
Appeal
Aug 25, 2021
Aug 25, 2021
Aug 13, 2021
(Electronic) Receipt
Appeal
Aug 13, 2021
Aug 13, 2021
Jul 30, 2021
(Electronic) Receipt
Appeal
Jul 30, 2021
Jul 30, 2021
Jul 30, 2021
Jul 30, 2021
Jun 29, 2021
Jun 25, 2021
Jun 23, 2021
(Electronic) Receipt
Appeal
Jun 23, 2021
Jun 23, 2021
Notice of appeal
Appeal
Jun 15, 2021
(Electronic) Receipt
Appeal
Jun 15, 2021
Jun 15, 2021
Jun 15, 2021
Notice of appeal
Appeal
Jun 8, 2021
(Electronic) Receipt
Appeal
Jun 8, 2021
Jun 8, 2021
Notice of appeal
Appeal
May 10, 2021
May 10, 2021
May 10, 2021
May 4, 2021
May 4, 2021
Apr 28, 2021
Apr 28, 2021
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Means of redress
OPPO
Apr 16, 2021
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Feb 26, 2020
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Authorisation
OPPO
Feb 26, 2020
Feb 26, 2020
Jan 21, 2020
Jan 21, 2020
Jan 16, 2020
Jan 16, 2020
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Jan 16, 2020
Jan 16, 2020
Sep 9, 2019
Sep 5, 2019
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Aug 29, 2019
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Aug 12, 2019
Refund of fees
OPPO
Aug 8, 2019
Aug 8, 2019
Jul 22, 2019
Jul 17, 2019
Jul 17, 2019
Jul 17, 2019
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Jul 17, 2019
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Jul 17, 2019
Jul 17, 2019
Jul 16, 2019
Jul 16, 2019
Jul 16, 2019
Jul 16, 2019
Oct 29, 2018
Sep 20, 2018
Decision to grant a European patent
Search/Exam
Sep 6, 2018
(Electronic) Receipt
Search/Exam
Sep 6, 2018
English translation of the claims
Search/Exam
Sep 6, 2018
French translation of claims
Search/Exam
Sep 6, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 26, 2018
Apr 26, 2018
Apr 26, 2018
Intention to grant (signatures)
Search/Exam
Apr 26, 2018
Text intended for grant (clean copy)
Search/Exam
Apr 26, 2018
Feb 28, 2018
Examination started
Search/Exam
Nov 16, 2017
May 25, 2015
(Electronic) Receipt
Search/Exam
May 25, 2015
May 25, 2015
Amended claims with annotations
Search/Exam
May 25, 2015
Amendments received before examination
Search/Exam
May 25, 2015
Letter accompanying subsequently filed items
Search/Exam
Dec 17, 2014
Nov 13, 2014
Nov 6, 2014
Priority search results copy provided by EPO
Search/Exam
Oct 10, 2014
Communication to designated inventor
Search/Exam
Oct 10, 2014
Communication to designated inventor
Search/Exam
Sep 22, 2014
Jul 15, 2014
Information regarding early processing
Search/Exam
Jun 30, 2014
(Electronic) Receipt
Search/Exam
Jun 30, 2014
Request for entry into the European phase
Search/Exam
Nov 27, 2013
Nov 27, 2013
Notification of the recording of a change
Search/Exam
Oct 1, 2013
Sep 12, 2013
Copy of the international search report
Search/Exam
Sep 12, 2013
Copy of the international search report
Search/Exam
Sep 12, 2013
Published international application - A1
Search/Exam
Mar 14, 2013
Mar 14, 2013
Mar 14, 2013
Feb 6, 2013
(Electronic) Receipt
PCTRO
Feb 6, 2013
Abstract
PCTRO
Feb 6, 2013
Claims
PCTRO
Feb 6, 2013
Description
PCTRO
Feb 6, 2013
Drawings
PCTRO
Feb 6, 2013