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The patent EP3683051 was granted to Smurfit Kappa Hoya Papier UND Karton on Feb 26, 2025. The application was filed on May 31, 2012 under application number EP20159274A. 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 |
|---|---|---|---|
| RGTH | Oct 8, 2025 | RGTH | ADMISSIBLE |
| MORITZ J WEIG | Oct 7, 2025 | EISENFUHR SPEISER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US5153061 |
| OPPOSITION | DE102006034602 |
| OPPOSITION | DE102011105761 |
| OPPOSITION | DE2712433 |
| OPPOSITION | DE3882197T |
| OPPOSITION | DE69733184T |
| OPPOSITION | EP0825019 |
| OPPOSITION | GB625323 |
| OPPOSITION | JP2000054284 |
| OPPOSITION | JP2001032195 |
| OPPOSITION | JP2001164491 |
| OPPOSITION | JP2003118024 |
| OPPOSITION | JP2006224994 |
| OPPOSITION | JP3106521U |
| OPPOSITION | JPH0199951 |
| OPPOSITION | JPH09229725 |
| OPPOSITION | JPH1024967 |
| OPPOSITION | JPS5129388 |
| OPPOSITION | KR20010019360 |
| OPPOSITION | US2002014196 |
| OPPOSITION | US2002160179 |
| OPPOSITION | US2003129332 |
| OPPOSITION | US2004087231 |
| OPPOSITION | US2004244927 |
| OPPOSITION | US2006029771 |
| OPPOSITION | US2593146 |
| OPPOSITION | US3384536 |
| OPPOSITION | US4587154 |
| OPPOSITION | US5153061 |
| OPPOSITION | US5540916 |
| OPPOSITION | US6000198 |
| OPPOSITION | US6551455 |
| OPPOSITION | US7320742 |
| OPPOSITION | WO02053838 |
| OPPOSITION | WO2012175309 |
| OPPOSITION | WO9732924 |
| OTHER | DE102011105761 |
| OTHER | EP2723563 |
| OTHER | EP3175985 |
| OTHER | WO2012175309 |
| SEARCH | DE2712433 |
| SEARCH | US2002160179 |
| SEARCH | US2003129332 |
| SEARCH | US2004087231 |
| SEARCH | US2593146 |
| SEARCH | WO02053838 |
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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(Electronic) Receipt
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Jan 6, 2025
Annexes in respect of a client data request
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Jan 6, 2025
Letter accompanying subsequently filed items
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Jan 6, 2025
Dec 12, 2024
Decision to grant a European patent
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Nov 15, 2024
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Nov 7, 2024
(Electronic) Receipt
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Nov 7, 2024
Citation filed by a third party
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Nov 7, 2024
Letter accompanying subsequently filed items
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Nov 7, 2024
Observations by third parties
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Oct 31, 2024
(Electronic) Receipt
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Oct 31, 2024
Letter accompanying subsequently filed items
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Oct 31, 2024
Observations by third parties
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Oct 25, 2024
(Electronic) Receipt
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Filing of the translations of the claims
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Oct 25, 2024
Intention to grant (signatures)
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Oct 25, 2024
Letter accompanying subsequently filed items
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Oct 25, 2024
Text intended for grant (clean copy)
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Sep 27, 2024
(Electronic) Receipt
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Sep 27, 2024
Citation filed by a third party
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Sep 27, 2024
Letter accompanying subsequently filed items
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Sep 27, 2024
Observations by third parties
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Sep 16, 2024
(Electronic) Receipt
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Sep 16, 2024
English translation of the claims
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Sep 16, 2024
Filing of the translations of the claims
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Sep 16, 2024
French translation of claims
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Sep 16, 2024
Letter accompanying subsequently filed items
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Sep 13, 2024
Sep 11, 2024
(Electronic) Receipt
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Sep 11, 2024
Letter accompanying subsequently filed items
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Sep 11, 2024
Observations by third parties
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Intention to grant (signatures)
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Sep 9, 2024
Text intended for grant (clean copy)
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Sep 9, 2024
May 31, 2024
(Electronic) Receipt
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May 31, 2024
Amended claims with annotations
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May 31, 2024
Claims
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May 31, 2024
Letter accompanying subsequently filed items
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May 31, 2024
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Mar 28, 2024
(Electronic) Receipt
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Mar 28, 2024
Letter accompanying subsequently filed items
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Mar 28, 2024
Dec 1, 2023
Annex to the communication
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Dec 1, 2023
Communication from the Examining Division
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Sep 12, 2023
(Electronic) Receipt
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Sep 12, 2023
Amended claims with annotations
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Sep 12, 2023
Claims
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Sep 12, 2023
Letter accompanying subsequently filed items
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Sep 12, 2023
Jul 14, 2023
Annex to the communication
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Jul 14, 2023
Communication from the Examining Division
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Jun 9, 2023
(Electronic) Receipt
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Jun 9, 2023
Amended claims with annotations
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Jun 9, 2023
Amended description with annotations
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Jun 9, 2023
Claims
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Jun 9, 2023
Description
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Jun 9, 2023
Letter accompanying subsequently filed items
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Jun 9, 2023
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Annex to the communication
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Apr 18, 2023
Communication from the Examining Division
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Apr 18, 2023
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(Electronic) Receipt
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Apr 13, 2023
Letter accompanying subsequently filed items
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Apr 13, 2023
Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Apr 13, 2023
Observations by third parties
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Mar 27, 2023
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(Electronic) Receipt
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Mar 21, 2023
Letter accompanying subsequently filed items
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Mar 21, 2023
Non-patent literature filed by a third party
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Mar 21, 2023
Non-patent literature filed by a third party
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Mar 21, 2023
Observations by third parties
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Mar 14, 2023
(Electronic) Receipt
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Mar 14, 2023
(Electronic) Receipt
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Mar 14, 2023
Amended description with annotations
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Mar 14, 2023
Description
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Mar 14, 2023
Letter accompanying subsequently filed items
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Mar 14, 2023
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Annex to the communication
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Feb 17, 2023
Communication from the Examining Division
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Feb 10, 2023
Observations by third parties
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Dec 20, 2022
Decision to allow further processing
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Dec 14, 2022
(Electronic) Receipt
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Dec 14, 2022
Amended claims with annotations
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Dec 14, 2022
Annex
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Dec 14, 2022
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Dec 14, 2022
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Dec 14, 2022
Claims
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Dec 14, 2022
Letter accompanying subsequently filed items
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Dec 14, 2022
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Annex to the communication
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Mar 4, 2022
Communication from the Examining Division
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Jan 7, 2022
Decision to allow further processing
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Dec 21, 2021
(Electronic) Receipt
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Dec 21, 2021
Annex
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Dec 21, 2021
Letter accompanying subsequently filed items
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Dec 21, 2021
Request for further processing
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Oct 19, 2021
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(Electronic) Receipt
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Jul 26, 2021
Letter accompanying subsequently filed items
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Jul 26, 2021
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Jun 11, 2021
(Electronic) Receipt
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Jun 11, 2021
Letter accompanying subsequently filed items
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Jun 11, 2021
Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Jun 11, 2021
Non-patent literature filed by a third party
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Jun 11, 2021
Observations by third parties
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Mar 17, 2021
Annex to the communication
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Mar 17, 2021
Communication from the Examining Division
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Mar 11, 2021
Examination started
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Jan 22, 2021
(Electronic) Receipt
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Jan 22, 2021
Jan 22, 2021
Amended claims with annotations
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Jan 22, 2021
Amendments received before examination
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Jan 22, 2021
Annex
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Jan 22, 2021
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Jan 22, 2021
Annex
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Jan 22, 2021
Letter accompanying subsequently filed items
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Jul 27, 2020
Jun 24, 2020
Notification of forthcoming publication
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Apr 22, 2020
Refund of fees
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Apr 20, 2020
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European search opinion
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Apr 20, 2020
European search report
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Apr 20, 2020
Information on Search Strategy
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Apr 17, 2020
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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Apr 17, 2020
Communication to designated inventor
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Apr 8, 2020
Search started
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Feb 25, 2020
Abstract
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Feb 25, 2020
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Claims
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Feb 25, 2020
Description
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Feb 25, 2020
Designation of inventor
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Feb 25, 2020
Drawings
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Feb 25, 2020
Request for grant of a European patent
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Jan 16, 2013