The weekly litigation news digest is live. Subscribe now
The patent EP3312339 was granted to Ahlstrom Munksj OYJ on Jan 1, 2020. The application was filed on Oct 6, 2015 under application number EP17203938A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| OWENS CORNING CAPITAL | Sep 28, 2020 | HASELTINE LAKE KEMPNER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0889151 |
| DESCRIPTION | EP2230075 |
| DESCRIPTION | US2006068186 |
| DESCRIPTION | US4047355 |
| DESCRIPTION | US4647496 |
| DESCRIPTION | US4783942 |
| DESCRIPTION | US5319900 |
| DESCRIPTION | US5552187 |
| DESCRIPTION | US6787486 |
| DESCRIPTION | US7932195 |
| DESCRIPTION | WO0206605 |
| DESCRIPTION | WO2004055286 |
| DESCRIPTION | WO2008100777 |
| DESCRIPTION | WO2013113459 |
| OPPOSITION | EP0731207 |
| OPPOSITION | EP1980540 |
| OPPOSITION | EP2230075 |
| OPPOSITION | US2001034399 |
| OPPOSITION | US2002135086 |
| OPPOSITION | US2004209074 |
| OPPOSITION | US2005202742 |
| OPPOSITION | US2006068186 |
| OPPOSITION | US2009156078 |
| OPPOSITION | US2010066121 |
| OPPOSITION | US2012028783 |
| OPPOSITION | US2013295378 |
| OPPOSITION | US4647496 |
| OPPOSITION | US5763022 |
| OPPOSITION | US5977244 |
| OPPOSITION | US6174568 |
| OPPOSITION | WO0022016 |
| OPPOSITION | WO2010026065 |
| OPPOSITION | WO9412549 |
| OPPOSITION | WO9942500 |
| SEARCH | EP2230075 |
| SEARCH | US2005202742 |
| SEARCH | WO2004055286 |
| SEARCH | WO2013113459 |
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
May 28, 2025
May 28, 2025
May 28, 2025
Apr 7, 2025
Apr 7, 2025
Apr 7, 2025
Apr 1, 2025
(Electronic) Receipt
Appeal
Apr 1, 2025
Authorisation
Appeal
Apr 1, 2025
Mar 7, 2025
Mar 4, 2025
(Electronic) Receipt
Appeal
Mar 4, 2025
Mar 4, 2025
Feb 17, 2025
Feb 12, 2025
(Electronic) Receipt
Appeal
Feb 12, 2025
Feb 12, 2025
Jan 20, 2025
Jan 15, 2025
(Electronic) Receipt
Appeal
Jan 15, 2025
Jan 15, 2025
Nov 5, 2024
Oct 31, 2024
(Electronic) Receipt
Appeal
Oct 31, 2024
Oct 31, 2024
Oct 31, 2024
Oct 31, 2024
Oct 31, 2024
Oct 31, 2024
Oct 31, 2024
Oct 31, 2024
Oct 31, 2024
Aug 6, 2024
Aug 6, 2024
Aug 5, 2024
Aug 2, 2024
Aug 1, 2024
(Electronic) Receipt
Appeal
Aug 1, 2024
Aug 1, 2024
Jul 24, 2024
Jul 24, 2024
Jul 24, 2024
Jul 19, 2024
Jun 5, 2024
Jan 9, 2024
Sep 18, 2023
Sep 14, 2023
(Electronic) Receipt
Appeal
Sep 14, 2023
Sep 14, 2023
Mar 2, 2023
Feb 27, 2023
(Electronic) Receipt
Appeal
Feb 27, 2023
Feb 27, 2023
Feb 27, 2023
Feb 27, 2023
Feb 27, 2023
Feb 27, 2023
Feb 27, 2023
Feb 27, 2023
Feb 27, 2023
Reply to appeal
Appeal
Oct 26, 2022
Oct 25, 2022
Oct 21, 2022
(Electronic) Receipt
Appeal
Oct 21, 2022
Oct 21, 2022
Oct 17, 2022
Oct 17, 2022
Oct 5, 2022
Oct 5, 2022
Sep 28, 2022
Aug 25, 2022
Aug 25, 2022
Aug 18, 2022
(Electronic) Receipt
Appeal
Aug 18, 2022
Aug 18, 2022
Notice of appeal
Appeal
Jun 23, 2022
Jun 17, 2022
Jun 17, 2022
Jun 17, 2022
Jun 15, 2022
Jun 15, 2022
Jun 15, 2022
Jun 15, 2022
Jun 15, 2022
Jun 15, 2022
Means of redress
OPPO
Jun 15, 2022
Jun 15, 2022
Jun 15, 2022
Jun 15, 2022
Jun 15, 2022
Jun 15, 2022
Jun 15, 2022
Apr 5, 2022
Mar 29, 2022
Mar 29, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 25, 2022
Mar 14, 2022
Mar 9, 2022
Mar 9, 2022
Authorisation
OPPO
Mar 9, 2022
Mar 9, 2022
Feb 25, 2022
Feb 21, 2022
Feb 21, 2022
Feb 21, 2022
Feb 9, 2022
Feb 7, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 2, 2022
Feb 2, 2022
Feb 2, 2022
Feb 2, 2022
Dec 8, 2021
Dec 8, 2021
Jun 1, 2021
Jun 1, 2021
May 31, 2021
May 31, 2021
May 31, 2021
May 31, 2021
May 31, 2021
May 31, 2021
May 31, 2021
May 31, 2021
May 31, 2021
Mar 5, 2021
Mar 5, 2021
Mar 5, 2021
Mar 5, 2021
Feb 15, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Oct 15, 2020
Oct 15, 2020
Oct 7, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Sep 28, 2020
Aug 20, 2020
Aug 17, 2020
Jan 13, 2020
Dec 5, 2019
Decision to grant a European patent
Search/Exam
Nov 15, 2019
(Electronic) Receipt
Search/Exam
Nov 15, 2019
Filing of the translations of the claims
Search/Exam
Nov 15, 2019
French translation of claims
Search/Exam
Nov 15, 2019
German translation of the claims
Search/Exam
Nov 15, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 17, 2019
Jul 17, 2019
Jul 17, 2019
Intention to grant (signatures)
Search/Exam
Jul 17, 2019
Text intended for grant (clean copy)
Search/Exam
Jul 17, 2019
Apr 11, 2019
(Electronic) Receipt
Search/Exam
Apr 11, 2019
Amended description with annotations
Search/Exam
Apr 11, 2019
Description
Search/Exam
Apr 11, 2019
Letter accompanying subsequently filed items
Search/Exam
Apr 11, 2019
Dec 11, 2018
Annex to the communication
Search/Exam
Dec 11, 2018
Communication from the Examining Division
Search/Exam
Dec 5, 2018
Examination started
Search/Exam
Jun 29, 2018
Jun 20, 2018
May 23, 2018
May 23, 2018
May 2, 2018
Apr 24, 2018
Apr 23, 2018
(Electronic) Receipt
Search/Exam
Apr 23, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 23, 2018
Apr 23, 2018
Mar 28, 2018
Notification of forthcoming publication
Search/Exam
Mar 21, 2018
(Electronic) Receipt
Search/Exam
Mar 21, 2018
Annexes in respect of a client data request
Search/Exam
Mar 21, 2018
Annexes in respect of a client data request
Search/Exam
Mar 21, 2018
Annexes in respect of a client data request
Search/Exam
Mar 21, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 21, 2018
Mar 1, 2018
Feb 28, 2018
Refund of fees
Search/Exam
Feb 23, 2018
Letter which had not been notified
Search/Exam
Feb 9, 2018
Feb 9, 2018
European search opinion
Search/Exam
Feb 9, 2018
European search report
Search/Exam
Feb 9, 2018
Information on Search Strategy
Search/Exam
Jan 29, 2018
Search started
Search/Exam
Jan 24, 2018
Communication to designated inventor
Search/Exam
Jan 24, 2018
Communication to designated inventor
Search/Exam
Jan 24, 2018
Communication to designated inventor
Search/Exam
Jan 24, 2018
Communication to designated inventor
Search/Exam
Dec 19, 2017
Priority search results copy provided by EPO
Search/Exam
Nov 27, 2017
Abstract
Search/Exam
Nov 27, 2017
Nov 27, 2017
Claims
Search/Exam
Nov 27, 2017
Description
Search/Exam
Nov 27, 2017
Designation of inventor
Search/Exam
Nov 27, 2017
Matter concerning the application
Search/Exam
Nov 27, 2017
Request for grant of a European patent
Search/Exam
May 4, 2016
May 4, 2016