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The patent EP3559344 was granted to Stora Enso OYJ on Apr 21, 2021. The application was filed on Dec 18, 2017 under application number EP17829298A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| BILLERUDKORSNAS | Jan 21, 2022 | KRANSELL & WENNBORG KB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2006028697 |
| DESCRIPTION | US2002136913 |
| DESCRIPTION | WO2009142739 |
| DESCRIPTION | WO2012163821 |
| DESCRIPTION | WO2015003275 |
| INTERNATIONAL-SEARCH-REPORT | US2013288030 |
| INTERNATIONAL-SEARCH-REPORT | WO2006007239 |
| INTERNATIONAL-SEARCH-REPORT | WO2013083504 |
| INTERNATIONAL-SEARCH-REPORT | WO2014005697 |
| INTERNATIONAL-SEARCH-REPORT | WO2016170229 |
| OPPOSITION | JP2006028697 |
| OPPOSITION | WO2006007239 |
| OTHER | WO2004035929 |
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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Means of redress
OPPO
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Authorisation
OPPO
May 3, 2022
Authorisation
OPPO
May 3, 2022
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May 4, 2021
Mar 25, 2021
Decision to grant a European patent
Search/Exam
Mar 12, 2021
(Electronic) Receipt
Search/Exam
Mar 12, 2021
Filing of the translations of the claims
Search/Exam
Mar 12, 2021
French translation of claims
Search/Exam
Mar 12, 2021
German translation of the claims
Search/Exam
Mar 12, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 9, 2020
Nov 9, 2020
Nov 9, 2020
Intention to grant (signatures)
Search/Exam
Nov 9, 2020
Text intended for grant (clean copy)
Search/Exam
Nov 9, 2020
Aug 24, 2020
(Electronic) Receipt
Search/Exam
Aug 24, 2020
Amended claims with annotations
Search/Exam
Aug 24, 2020
Amended description with annotations
Search/Exam
Aug 24, 2020
Claims
Search/Exam
Aug 24, 2020
Description
Search/Exam
Aug 24, 2020
Letter accompanying subsequently filed items
Search/Exam
Aug 24, 2020
May 28, 2020
Annex to the communication
Search/Exam
May 28, 2020
Communication from the Examining Division
Search/Exam
May 25, 2020
Examination started
Search/Exam
Feb 4, 2020
Abstract
Search/Exam
Feb 4, 2020
Feb 4, 2020
Amended claims with annotations
Search/Exam
Feb 4, 2020
Feb 4, 2020
Amended description with annotations
Search/Exam
Feb 4, 2020
Amendments received before examination
Search/Exam
Feb 4, 2020
Cover sheet for fax transmission
Search/Exam
Jan 31, 2020
Abstract
Search/Exam
Jan 31, 2020
Jan 31, 2020
Amended claims with annotations
Search/Exam
Jan 31, 2020
Jan 31, 2020
Amended description with annotations
Search/Exam
Jan 31, 2020
Amendments received before examination
Search/Exam
Oct 2, 2019
Aug 1, 2019
Jul 30, 2019
Communication to designated inventor
Search/Exam
Jul 30, 2019
Communication to designated inventor
Search/Exam
Jul 9, 2019
Jun 17, 2019
(Electronic) Receipt
Search/Exam
Jun 17, 2019
Priority search results
Search/Exam
Jun 17, 2019
Request for entry into the European phase
Search/Exam
May 6, 2019
Information on entry into European phase
Search/Exam
Jul 17, 2018
Jun 28, 2018
Copy of the international search report
Search/Exam
Jun 28, 2018
Published international application - A1
Search/Exam
Feb 20, 2018
ISR: cited documents
PCTISA
Feb 19, 2018
Feb 19, 2018
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Jan 29, 2018
Jan 12, 2018
Abstract
PCTISA
Jan 12, 2018
Claims
PCTISA
Jan 12, 2018
Description
PCTISA
Jan 12, 2018
Drawings
PCTISA
Jan 12, 2018