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The patent EP2987827 was granted to Johns Manville Europe on Sep 2, 2020. The application was filed on Jul 27, 2015 under application number EP15178483A. 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 |
|---|---|---|---|
| POLITEX DI FREUDENBERG POLITEX | May 27, 2021 | BANSE & STEGLICH PATENTANWALTE PARTMBB | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE3931363 |
| DESCRIPTION | EP2192153 |
| DESCRIPTION | EP2607533 |
| OPPOSITION | EP0911361 |
| OPPOSITION | EP1486547 |
| OPPOSITION | EP2192153 |
| OPPOSITION | EP2199333 |
| OPPOSITION | EP2586909 |
| OPPOSITION | EP2607533 |
| OPPOSITION | EP2679624 |
| OPPOSITION | US2009170978 |
| OPPOSITION | US5621026 |
| OPPOSITION | WO0158430 |
| OTHER | EP0911361 |
| SEARCH | EP2192153 |
| SEARCH | EP2199333 |
| SEARCH | EP2607533 |
| SEARCH | EP2679624 |
| SEARCH | US2009170978 |
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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Complaint
OPPO
Oct 17, 2025
Complaint
OPPO
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Nov 29, 2024
(Electronic) Receipt
Appeal
Nov 29, 2024
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Nov 7, 2024
Nov 1, 2024
(Electronic) Receipt
Appeal
Nov 1, 2024
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Oct 29, 2024
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Oct 23, 2024
(Electronic) Receipt
Appeal
Oct 23, 2024
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Oct 15, 2024
(Electronic) Receipt
Appeal
Oct 15, 2024
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May 17, 2024
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May 14, 2024
(Electronic) Receipt
Appeal
May 14, 2024
May 14, 2024
Mar 26, 2024
Mar 21, 2024
(Electronic) Receipt
Appeal
Mar 21, 2024
Mar 21, 2024
Mar 18, 2024
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Mar 13, 2024
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Nov 23, 2023
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(Electronic) Receipt
Appeal
Nov 20, 2023
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Nov 7, 2023
Nov 1, 2023
(Electronic) Receipt
Appeal
Nov 1, 2023
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Nov 1, 2023
Nov 1, 2023
Aug 7, 2023
Aug 2, 2023
(Electronic) Receipt
Appeal
Aug 2, 2023
Aug 2, 2023
Reply to appeal
Appeal
May 2, 2023
Apr 25, 2023
(Electronic) Receipt
Appeal
Apr 25, 2023
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Feb 14, 2023
(Electronic) Receipt
Appeal
Feb 14, 2023
Feb 14, 2023
Notice of appeal
Appeal
Dec 16, 2022
Dec 15, 2022
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Means of redress
OPPO
Dec 15, 2022
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Sep 14, 2020
Aug 6, 2020
Decision to grant a European patent
Search/Exam
Jun 18, 2020
(Electronic) Receipt
Search/Exam
Jun 18, 2020
Filing of the translations of the claims
Search/Exam
Jun 18, 2020
French translation of claims
Search/Exam
Jun 18, 2020
German translation of the claims
Search/Exam
Jun 18, 2020
Letter accompanying subsequently filed items
Search/Exam
May 20, 2020
May 12, 2020
Letter concerning the inventor
Search/Exam
Mar 3, 2020
Mar 3, 2020
Mar 3, 2020
Intention to grant (signatures)
Search/Exam
Mar 3, 2020
Text intended for grant (clean copy)
Search/Exam
Mar 3, 2020
Feb 11, 2020
Jan 30, 2020
Observations by third parties
Search/Exam
Jan 30, 2020
Patent document filed by a Third party
Search/Exam
Jan 16, 2020
Dec 19, 2019
Dec 19, 2019
Oct 2, 2019
(Electronic) Receipt
Search/Exam
Oct 2, 2019
Amended claims with annotations
Search/Exam
Oct 2, 2019
Claims
Search/Exam
Oct 2, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 2, 2019
Jul 10, 2019
Annex to the communication
Search/Exam
Jul 10, 2019
Communication from the Examining Division
Search/Exam
Feb 28, 2019
Examination started
Search/Exam
Nov 15, 2018
Apr 4, 2017
Submission concerning representation
Search/Exam
Apr 3, 2017
Submission concerning representation
Search/Exam
Aug 19, 2016
Aug 19, 2016
Amended claims with annotations
Search/Exam
Aug 19, 2016
Amendments received before examination
Search/Exam
Aug 19, 2016
Matter concerning the application
Search/Exam
Aug 19, 2016
Payment of fees and costs
Search/Exam
Feb 29, 2016
Jan 27, 2016
Notification of forthcoming publication
Search/Exam
Oct 21, 2015
Oct 21, 2015
European search opinion
Search/Exam
Oct 21, 2015
European search report
Search/Exam
Sep 30, 2015
Search started
Search/Exam
Sep 21, 2015
Communication to designated inventor
Search/Exam
Sep 21, 2015
Communication to designated inventor
Search/Exam
Aug 29, 2015
Designation of inventor
Search/Exam
Aug 29, 2015
Letter concerning the inventor
Search/Exam
Aug 4, 2015
Letter concerning the priority
Search/Exam
Aug 4, 2015
Priority document
Search/Exam
Jul 29, 2015
Letter concerning fees and payments
Search/Exam
Jul 29, 2015
Payment of fees and costs
Search/Exam
Jul 27, 2015
Abstract
Search/Exam
Jul 27, 2015
Jul 27, 2015
Claims
Search/Exam
Jul 27, 2015
Description
Search/Exam
Jul 27, 2015
Priority search results
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Jul 27, 2015
Request for grant of a European patent
Search/Exam