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The patent EP3527365 was granted to Pyroguard UK on Aug 10, 2022. The application was filed on Feb 14, 2019 under application number EP19157136A. 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 | May 10, 2023 | FORTT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | DE102005018842 |
| OPPOSITION | EP1205524 |
| OPPOSITION | US2005000623 |
| OPPOSITION | US2012076966 |
| OPPOSITION | US5437902 |
| OPPOSITION | US5547720 |
| OPPOSITION | US6340508 |
| OPPOSITION | WO2009007452 |
| OPPOSITION | WO9404355 |
| SEARCH | DE102005018842 |
| SEARCH | EP1205524 |
| SEARCH | GB1562792 |
| SEARCH | US2005000623 |
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 17, 2025
Nov 12, 2025
(Electronic) Receipt
Appeal
Nov 12, 2025
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Sep 16, 2025
(Electronic) Receipt
Appeal
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Aug 15, 2025
(Electronic) Receipt
Appeal
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Jun 10, 2025
(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Feb 11, 2025
Feb 6, 2025
(Electronic) Receipt
Appeal
Feb 6, 2025
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Jan 13, 2025
Jan 8, 2025
(Electronic) Receipt
Appeal
Jan 8, 2025
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Dec 11, 2024
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Dec 5, 2024
(Electronic) Receipt
Appeal
Dec 5, 2024
Notice of appeal
Appeal
Oct 8, 2024
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Means of redress
OPPO
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Aug 23, 2022
Jul 14, 2022
Decision to grant a European patent
Search/Exam
Jul 5, 2022
(Electronic) Receipt
Search/Exam
Jul 5, 2022
French translation of claims
Search/Exam
Jul 5, 2022
German translation of the claims
Search/Exam
Jul 5, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 7, 2022
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Mar 7, 2022
Intention to grant (signatures)
Search/Exam
Mar 7, 2022
Text intended for grant (clean copy)
Search/Exam
Mar 7, 2022
Jan 5, 2022
(Electronic) Receipt
Search/Exam
Jan 5, 2022
Amended claims with annotations
Search/Exam
Jan 5, 2022
Claims
Search/Exam
Jan 5, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 5, 2022
Jan 5, 2022
Sep 10, 2021
Sep 10, 2021
Sep 10, 2021
Intention to grant (signatures)
Search/Exam
Sep 10, 2021
Text intended for grant (clean copy)
Search/Exam
Sep 10, 2021
May 13, 2021
(Electronic) Receipt
Search/Exam
May 13, 2021
Amended claims with annotations
Search/Exam
May 13, 2021
Claims
Search/Exam
May 13, 2021
Letter accompanying subsequently filed items
Search/Exam
May 13, 2021
Mar 4, 2021
Annex to the communication
Search/Exam
Mar 4, 2021
Communication from the Examining Division
Search/Exam
Jan 6, 2021
(Electronic) Receipt
Search/Exam
Jan 6, 2021
Amended claims with annotations
Search/Exam
Jan 6, 2021
Amended description with annotations
Search/Exam
Jan 6, 2021
Claims
Search/Exam
Jan 6, 2021
Description
Search/Exam
Jan 6, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 6, 2021
Sep 11, 2020
Annex to the communication
Search/Exam
Sep 11, 2020
Communication from the Examining Division
Search/Exam
Jul 31, 2020
(Electronic) Receipt
Search/Exam
Jul 31, 2020
Amended claims with annotations
Search/Exam
Jul 31, 2020
Claims
Search/Exam
Jul 31, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 31, 2020
Jul 20, 2020
Annex to the communication
Search/Exam
Jul 20, 2020
Communication from the Examining Division
Search/Exam
May 5, 2020
Examination started
Search/Exam
Feb 18, 2020
(Electronic) Receipt
Search/Exam
Feb 18, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 18, 2020
Reply to Written Opinion prepared by the EPO
Search/Exam
Aug 26, 2019
Jul 24, 2019
Notification of forthcoming publication
Search/Exam
Jun 18, 2019
Jun 18, 2019
European search opinion
Search/Exam
Jun 18, 2019
European search report
Search/Exam
Jun 18, 2019
Information on Search Strategy
Search/Exam
Jun 3, 2019
Search started
Search/Exam
May 6, 2019
Communication to designated inventor
Search/Exam
May 6, 2019
Communication to designated inventor
Search/Exam
Mar 12, 2019
Feb 14, 2019
Abstract
Search/Exam
Feb 14, 2019
Feb 14, 2019
Claims
Search/Exam
Feb 14, 2019
Description
Search/Exam
Feb 14, 2019
Designation of inventor
Search/Exam
Feb 14, 2019
Drawings
Search/Exam
Feb 14, 2019
Priority search results
Search/Exam
Feb 14, 2019
Request for grant of a European patent
Search/Exam