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The patent EP3211135 was granted to Billerudkorsns on Aug 29, 2018. The application was filed on Feb 29, 2016 under application number EP16157913A. 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 |
|---|---|---|---|
| MONDI | May 29, 2019 | CUNOW | ADMISSIBLE |
| STORA ENSO OYJ | May 28, 2019 | FORSTMEYER | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | US4741376 |
| OPPOSITION | WO9902772 |
| SEARCH | EP0124496 |
| SEARCH | EP2963178 |
| SEARCH | US2014031187 |
| SEARCH | WO2011000942 |
| SEARCH | WO9902772 |
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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Aug 27, 2025
Refund of fees
Appeal
Aug 25, 2025
(Electronic) Receipt
Appeal
Aug 25, 2025
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(Electronic) Receipt
Appeal
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Withdrawal of an appeal
Appeal
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Appeal
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Appeal
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Appeal
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Appeal
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(Electronic) Receipt
Appeal
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Appeal
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Notice of appeal
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Search/Exam
Jul 11, 2018
(Electronic) Receipt
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Filing of the translations of the claims
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French translation of claims
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Letter accompanying subsequently filed items
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Feb 28, 2018
(Electronic) Receipt
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Feb 28, 2018
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Letter accompanying subsequently filed items
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Notification of forthcoming publication
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European search opinion
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European search report
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Information on Search Strategy
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Jul 11, 2016
Search started
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Communication to designated inventor
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Feb 29, 2016
Abstract
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Feb 29, 2016
Description
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Feb 29, 2016
Designation of inventor
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Feb 29, 2016
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Feb 29, 2016
Request for grant of a European patent
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