The weekly litigation news digest is live. Subscribe now
The patent EP3141534 was granted to Guardian Glass on Jul 16, 2025. The application was filed on Dec 6, 2010 under application number EP16177756A. 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 |
|---|---|---|---|
| SAINT GOBAIN | Mar 5, 2020 | SAINT GOBAIN RECHERCHE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2012048722 |
| OPPOSITION | EP1841706 |
| OPPOSITION | US2009117371 |
| OPPOSITION | WO2005024085 |
| OPPOSITION | WO2006020753 |
| OPPOSITION | WO2007018951 |
| OPPOSITION | WO2009157970 |
| OPPOSITION | WO2011105991 |
| SEARCH | US2010209729 |
| SEARCH | US2010209730 |
| SEARCH | WO0155752 |
| SEARCH | WO9513189 |
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
Get instant alerts for new documents
Jun 20, 2025
Jun 20, 2025
Jun 10, 2025
Jun 10, 2025
Jun 10, 2025
Jun 10, 2025
Jun 10, 2025
Mar 13, 2025
Mar 13, 2025
Mar 13, 2025
Mar 5, 2025
Mar 3, 2025
Mar 3, 2025
Mar 3, 2025
Feb 3, 2025
Feb 3, 2025
Feb 3, 2025
Jan 10, 2025
Jan 10, 2025
Jan 10, 2025
Jan 7, 2025
(Electronic) Receipt
Appeal
Jan 7, 2025
Jan 7, 2025
Sep 10, 2024
Sep 10, 2024
Jul 25, 2024
Jul 25, 2024
Jul 22, 2024
Feb 15, 2024
Feb 12, 2024
(Electronic) Receipt
Appeal
Feb 12, 2024
Feb 12, 2024
Reply to appeal
Appeal
Oct 16, 2023
Oct 11, 2023
(Electronic) Receipt
Appeal
Oct 11, 2023
Oct 11, 2023
Oct 11, 2023
Oct 11, 2023
Oct 11, 2023
Oct 11, 2023
Oct 11, 2023
Oct 11, 2023
Oct 11, 2023
Oct 11, 2023
Oct 11, 2023
Oct 11, 2023
Claims
Appeal
Oct 11, 2023
Claims
Appeal
Oct 11, 2023
Claims
Appeal
Oct 11, 2023
Claims
Appeal
Oct 11, 2023
Claims
Appeal
Oct 11, 2023
Claims
Appeal
Oct 11, 2023
Claims
Appeal
Oct 11, 2023
Claims
Appeal
Oct 11, 2023
Claims
Appeal
Oct 11, 2023
Claims
Appeal
Oct 11, 2023
Claims
Appeal
Oct 11, 2023
Oct 11, 2023
Aug 7, 2023
Aug 7, 2023
Aug 7, 2023
Aug 1, 2023
(Electronic) Receipt
Appeal
Aug 1, 2023
Aug 1, 2023
Notice of appeal
Appeal
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Means of redress
OPPO
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
May 30, 2023
Nov 24, 2022
Oct 4, 2022
Sep 30, 2022
Sep 23, 2022
Sep 23, 2022
Sep 23, 2022
Sep 23, 2022
Sep 23, 2022
Sep 23, 2022
Sep 23, 2022
Sep 23, 2022
Sep 23, 2022
Sep 23, 2022
Sep 23, 2022
Sep 23, 2022
Sep 23, 2022
Sep 23, 2022
Sep 23, 2022
Sep 23, 2022
Jul 1, 2022
Jul 1, 2022
May 17, 2022
May 17, 2022
May 17, 2022
May 9, 2022
May 9, 2022
May 9, 2022
May 3, 2022
May 3, 2022
May 3, 2022
May 3, 2022
May 3, 2022
May 3, 2022
Aug 3, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Mar 19, 2020
Mar 19, 2020
Mar 13, 2020
Mar 13, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Jun 18, 2019
May 9, 2019
Decision to grant a European patent
Search/Exam
Apr 23, 2019
(Electronic) Receipt
Search/Exam
Apr 23, 2019
Filing of the translations of the claims
Search/Exam
Apr 23, 2019
French translation of claims
Search/Exam
Apr 23, 2019
German translation of the claims
Search/Exam
Apr 23, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 11, 2019
Jan 7, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 7, 2019
Dec 21, 2018
Dec 20, 2018
General authorisation
Search/Exam
Dec 20, 2018
General authorisation
Search/Exam
Dec 20, 2018
General authorisation
Search/Exam
Dec 20, 2018
General authorisation
Search/Exam
Dec 20, 2018
General authorisation
Search/Exam
Dec 20, 2018
Dec 19, 2018
Letter accompanying subsequently filed items
Search/Exam
Dec 19, 2018
Dec 14, 2018
Dec 14, 2018
Dec 14, 2018
Intention to grant (signatures)
Search/Exam
Dec 14, 2018
Text intended for grant (clean copy)
Search/Exam
Dec 14, 2018
Dec 6, 2018
Oct 25, 2018
Examination started
Search/Exam
Dec 6, 2017
Nov 27, 2017
Annexes in respect of a client data request
Search/Exam
Nov 27, 2017
Annexes in respect of a client data request
Search/Exam
Nov 27, 2017
Sep 12, 2017
(Electronic) Receipt
Search/Exam
Sep 12, 2017
Sep 12, 2017
Amended claims with annotations
Search/Exam
Sep 12, 2017
Amendments received before examination
Search/Exam
Sep 12, 2017
Letter accompanying subsequently filed items
Search/Exam
Mar 20, 2017
Feb 15, 2017
Notification of forthcoming publication
Search/Exam
Feb 15, 2017
Refund of fees
Search/Exam
Feb 9, 2017
Feb 9, 2017
European search opinion
Search/Exam
Feb 9, 2017
European search report
Search/Exam
Feb 9, 2017
Information on Search Strategy
Search/Exam
Jan 5, 2017
Dec 13, 2016
Communication to designated inventor
Search/Exam
Dec 13, 2016
Communication to designated inventor
Search/Exam
Dec 2, 2016
Letter concerning the inventor
Search/Exam
Oct 28, 2016
Annex to the communication
Search/Exam
Oct 28, 2016
Oct 21, 2016
Search started
Search/Exam
Oct 17, 2016
Oct 17, 2016
Oct 4, 2016
Letter which had not been notified
Search/Exam
Sep 29, 2016
Letter which had not been notified
Search/Exam
Aug 26, 2016
Communication to designated inventor
Search/Exam
Aug 26, 2016
Communication to designated inventor
Search/Exam
Aug 26, 2016
Communication to designated inventor
Search/Exam
Aug 26, 2016
Communication to designated inventor
Search/Exam
Jul 4, 2016
Abstract
Search/Exam
Jul 4, 2016
Jul 4, 2016
Claims
Search/Exam
Jul 4, 2016
Description
Search/Exam
Jul 4, 2016
Designation of inventor
Search/Exam
Jul 4, 2016
Drawings
Search/Exam
Jul 4, 2016
Letter concerning search matters
Search/Exam
Jul 4, 2016
Request for grant of a European patent
Search/Exam
Sep 21, 2011
Sep 21, 2011
Sep 21, 2011