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The patent EP3461637 was granted to Nippon Paper Industries on Aug 3, 2022. The application was filed on Sep 29, 2017 under application number EP17856415A. 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 |
|---|---|---|---|
| BILLERUD AKTIEBOLAG PUBL | May 3, 2023 | KRANSELL & WENNBORG KB | ADMISSIBLE |
| KOEHLER INNOVATION & TECHNOLOGY | May 2, 2023 | PATENTSHIP PATENTANWALTSGESELLSCHAFT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2004042959 |
| INTERNATIONAL-SEARCH-REPORT | JP2013079469 |
| INTERNATIONAL-SEARCH-REPORT | JP2014009413 |
| INTERNATIONAL-SEARCH-REPORT | JP2016064871 |
| INTERNATIONAL-SEARCH-REPORT | JP2017124851 |
| INTERNATIONAL-SEARCH-REPORT | WO2013069788 |
| INTERNATIONAL-SEARCH-REPORT | WO2017170462 |
| OPPOSITION | EP1219656 |
| OPPOSITION | EP2266794 |
| OPPOSITION | EP2395027 |
| OPPOSITION | EP2777934 |
| OPPOSITION | EP3437860 |
| OPPOSITION | GB2502241 |
| OPPOSITION | JP2000052520 |
| OPPOSITION | JP2004042959 |
| OPPOSITION | JP2010069767 |
| OPPOSITION | JP2012011651 |
| OPPOSITION | JP2013071404 |
| OPPOSITION | JP2013079469 |
| OPPOSITION | JP2013169704 |
| OPPOSITION | JP2014009413 |
| OPPOSITION | JP2014015703 |
| OPPOSITION | JP2014237309 |
| OPPOSITION | JP2015227517 |
| OPPOSITION | JP2016068363 |
| OPPOSITION | JPH10249978 |
| OPPOSITION | US2012100320 |
| OPPOSITION | US8029896 |
| OPPOSITION | WO2014181560 |
| SEARCH | EP2199077 |
| SEARCH | EP2777934 |
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.
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Decision to grant a European patent
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Jun 21, 2022
(Electronic) Receipt
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Jun 21, 2022
French translation of claims
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Jun 21, 2022
German translation of the claims
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Jun 21, 2022
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Feb 21, 2022
Text intended for grant (clean copy)
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Feb 21, 2022
Sep 17, 2021
(Electronic) Receipt
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Sep 17, 2021
Amended description with annotations
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Sep 17, 2021
Description
Search/Exam
Sep 17, 2021
Letter accompanying subsequently filed items
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Sep 17, 2021
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Annex to the communication
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Jun 16, 2021
Communication from the Examining Division
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Feb 24, 2021
(Electronic) Receipt
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Feb 24, 2021
Amended claims with annotations
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Letter accompanying subsequently filed items
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Feb 24, 2021
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Annex to the communication
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Nov 16, 2020
Communication from the Examining Division
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Sep 28, 2020
(Electronic) Receipt
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Sep 28, 2020
Amended claims with annotations
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Amended claims with annotations
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Sep 28, 2020
Letter accompanying subsequently filed items
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Sep 28, 2020
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Annex to the communication
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Jun 25, 2020
Communication from the Examining Division
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Jun 22, 2020
Examination started
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Apr 20, 2020
(Electronic) Receipt
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Amended claims with annotations
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Apr 20, 2020
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Apr 20, 2020
Letter accompanying subsequently filed items
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Jan 10, 2020
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European search opinion
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Dec 20, 2019
Information on Search Strategy
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Dec 20, 2019
Supplementary European search report
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Apr 16, 2019
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Notification of forthcoming publication
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Feb 25, 2019
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Reply by International Bureau
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Jan 29, 2019
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Enquiry with the International Bureau
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Jan 25, 2019
Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Dec 28, 2018
(Electronic) Receipt
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Dec 28, 2018
Abstract
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Dec 28, 2018
Claims
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Dec 28, 2018
Description
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Dec 28, 2018
Request for entry into the European phase
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Apr 24, 2018
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Copy of the international search report
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Apr 5, 2018
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International publication pamphlet
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