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The patent EP3103649 was granted to Nippon Paper Industries on Jan 22, 2025. The application was filed on Mar 6, 2015 under application number EP15766003A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| SCHAEFER KALK | Oct 2, 2018 | MAI BESIER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2008194843 |
| INTERNATIONAL-SEARCH-REPORT | JP2012076230 |
| INTERNATIONAL-SEARCH-REPORT | JPH05162446 |
| OPPOSITION | DE102008057270 |
| OPPOSITION | EP1910281 |
| OPPOSITION | JPH05162446 |
| OPPOSITION | US5364610 |
| OPPOSITION | WO2008006474 |
| OPPOSITION | WO2014121788 |
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 7, 2025
Jan 7, 2025
Dec 12, 2024
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Refund of fees
Appeal
Oct 10, 2024
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Oct 2, 2024
(Electronic) Receipt
Appeal
Oct 2, 2024
Oct 2, 2024
Withdrawal of an appeal
Appeal
Sep 26, 2024
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Sep 12, 2024
(Electronic) Receipt
Appeal
Sep 12, 2024
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Sep 10, 2024
(Electronic) Receipt
Appeal
Sep 10, 2024
Sep 10, 2024
Aug 2, 2024
Jul 26, 2024
(Electronic) Receipt
Appeal
Jul 26, 2024
General enquiry
Appeal
Jul 26, 2024
Dec 13, 2023
Advice of delivery
Appeal
Dec 8, 2023
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Appeal
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Description
Appeal
Mar 24, 2023
Description
Appeal
Mar 24, 2023
Description
Appeal
Mar 24, 2023
Mar 24, 2023
Reply to appeal
Appeal
Nov 14, 2022
Nov 9, 2022
(Electronic) Receipt
Appeal
Nov 9, 2022
Nov 9, 2022
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Sep 19, 2022
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Sep 13, 2022
(Electronic) Receipt
Appeal
Sep 13, 2022
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Sep 7, 2022
(Electronic) Receipt
Appeal
Sep 7, 2022
Sep 7, 2022
Notice of appeal
Appeal
Jul 5, 2022
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OPPO
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Claims
OPPO
Apr 11, 2019
Claims
OPPO
Apr 11, 2019
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Jan 26, 2018
Dec 7, 2017
Decision to grant a European patent
Search/Exam
Nov 23, 2017
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Nov 23, 2017
Intention to grant (signatures)
Search/Exam
Nov 23, 2017
Text intended for grant (clean copy)
Search/Exam
Nov 23, 2017
Oct 30, 2017
Oct 12, 2017
(Electronic) Receipt
Search/Exam
Oct 12, 2017
Claims
Search/Exam
Oct 12, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 12, 2017
Oct 11, 2017
(Electronic) Receipt
Search/Exam
Oct 11, 2017
French translation of claims
Search/Exam
Oct 11, 2017
German translation of the claims
Search/Exam
Oct 11, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 11, 2017
Jun 14, 2017
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Intention to grant (signatures)
Search/Exam
Jun 14, 2017
Text intended for grant (clean copy)
Search/Exam
Jun 14, 2017
Apr 24, 2017
Examination started
Search/Exam
Jan 25, 2017
Jan 25, 2017
Information on Search Strategy
Search/Exam
Jan 25, 2017
Supplementary European search report
Search/Exam
Dec 14, 2016
Search started
Search/Exam
Nov 16, 2016
Notification of forthcoming publication
Search/Exam
Oct 21, 2016
Communication to designated inventor
Search/Exam
Oct 21, 2016
Communication to designated inventor
Search/Exam
Oct 21, 2016
Communication to designated inventor
Search/Exam
Oct 6, 2016
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Sep 26, 2016
Sep 14, 2016
(Electronic) Receipt
Search/Exam
Sep 14, 2016
Letter accompanying subsequently filed items
Search/Exam
Sep 14, 2016
Matter concerning the application
Search/Exam
Sep 9, 2016
(Electronic) Receipt
Search/Exam
Sep 9, 2016
Abstract
Search/Exam
Sep 9, 2016
Sep 9, 2016
Amended claims with annotations
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Sep 9, 2016
Claims
Search/Exam
Sep 9, 2016
Description
Search/Exam
Sep 9, 2016
Drawings
Search/Exam
Sep 9, 2016
Matter concerning the application
Search/Exam
Sep 9, 2016
Request for entry into the European phase
Search/Exam
Jul 29, 2016
Information on entry into European phase
Search/Exam
Oct 13, 2015
Sep 24, 2015
Copy of the international search report
Search/Exam
Sep 24, 2015
Sep 24, 2015
International publication pamphlet
Search/Exam