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The patent EP4101980 was granted to Mondi on Oct 23, 2024. The application was filed on Aug 12, 2021 under application number EP21191115A. 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 |
|---|---|---|---|
| BILLERUD AKTIEBOLAG PUBL | Jul 9, 2025 | KRANSELL & WENNBORG KB | ADMISSIBLE |
| NORDIC PAPER BACKHAMMAR | Jun 27, 2025 | BJERKEN HYNELL KB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | EP2186939 |
| OPPOSITION | EP3088606 |
| OPPOSITION | EP3168362 |
| OPPOSITION | EP3786079 |
| OPPOSITION | US5061346 |
| OPPOSITION | WO2011000942 |
| OPPOSITION | WO2017080910 |
| OPPOSITION | WO2017148921 |
| OPPOSITION | WO2018185216 |
| OPPOSITION | WO2020120535 |
| OTHER | GB2613511 |
| OTHER | WO2018185216 |
| SEARCH | EP2449176 |
| SEARCH | EP3088606 |
| SEARCH | EP3168362 |
| SEARCH | US2021102340 |
| SEARCH | WO2020120535 |
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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Jan 13, 2026
Refund of fees
Search/Exam
Jan 7, 2026
Jan 7, 2026
Dec 30, 2025
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Authorisation
OPPO
Jun 27, 2025
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Nov 6, 2024
Sep 26, 2024
Decision to grant a European patent
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Sep 11, 2024
(Electronic) Receipt
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Sep 11, 2024
English translation of the claims
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Sep 11, 2024
Filing of the translations of the claims
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Sep 11, 2024
French translation of claims
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Sep 11, 2024
Letter accompanying subsequently filed items
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May 31, 2024
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May 31, 2024
Intention to grant (signatures)
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May 31, 2024
Text intended for grant (clean copy)
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May 31, 2024
May 13, 2024
Examination started
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Feb 16, 2024
Feb 15, 2024
Feb 9, 2024
(Electronic) Receipt
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Feb 9, 2024
Letter accompanying subsequently filed items
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Feb 9, 2024
Non-patent literature filed by a third party
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Feb 9, 2024
Non-patent literature filed by a third party
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Feb 9, 2024
Non-patent literature filed by a third party
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Feb 9, 2024
Non-patent literature filed by a third party
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Feb 9, 2024
Non-patent literature filed by a third party
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Feb 9, 2024
Non-patent literature filed by a third party
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Feb 9, 2024
Non-patent literature filed by a third party
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Feb 9, 2024
Observations by third parties
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Feb 9, 2024
Patent document filed by a Third party
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Feb 9, 2024
Patent document filed by a Third party
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Oct 5, 2023
Jun 13, 2023
(Electronic) Receipt
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Jun 13, 2023
Jun 13, 2023
Amended claims with annotations
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Jun 13, 2023
Jun 13, 2023
Amended description with annotations
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Jun 13, 2023
Amendments received before examination
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Jun 13, 2023
Letter accompanying subsequently filed items
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Jan 17, 2023
Document concerning representation
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Dec 19, 2022
Nov 16, 2022
Notification of forthcoming publication
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Feb 10, 2022
Refund of fees
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Feb 7, 2022
Feb 7, 2022
European search opinion
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Feb 7, 2022
European search report
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Feb 7, 2022
Information on Search Strategy
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Feb 2, 2022
Priority search results copy provided by EPO
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Jan 27, 2022
Search started
Search/Exam
Aug 30, 2021
Aug 25, 2021
Aug 12, 2021
Abstract
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Aug 12, 2021
Aug 12, 2021
Claims
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Aug 12, 2021
Description
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Aug 12, 2021
Designation of inventor
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Aug 12, 2021
Letter concerning the inventor
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Aug 12, 2021
Request for grant of a European patent
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