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The patent EP2682453 was granted to Nippon Suisan Kaisha on Mar 22, 2023. The application was filed on Mar 2, 2012 under application number EP12752142A. 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 |
|---|---|---|---|
| PRONOVA BIOPHARMA NORGE | Mar 21, 2018 | EISENFUHR SPEISER | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JPH0416519B |
| DESCRIPTION | US7678930 |
| DESCRIPTION | WO2007119811 |
| INTERNATIONAL-SEARCH-REPORT | JP2000510513 |
| INTERNATIONAL-SEARCH-REPORT | JP2006501840 |
| INTERNATIONAL-SEARCH-REPORT | JPH03259999 |
| INTERNATIONAL-SEARCH-REPORT | JPH03500054 |
| INTERNATIONAL-SEARCH-REPORT | WO2007119811 |
| OPPOSITION | EP0154753 |
| OPPOSITION | EP0298293 |
| OPPOSITION | EP0340635 |
| OPPOSITION | EP2006389 |
| OPPOSITION | EP2172558 |
| OPPOSITION | JPS58165796 |
| OPPOSITION | US4804555 |
| OPPOSITION | US5719302 |
| OPPOSITION | US7678930 |
| OPPOSITION | WO2004007654 |
| OPPOSITION | WO2004007655 |
| OPPOSITION | WO2004043894 |
| OPPOSITION | WO2012038833 |
| OPPOSITION | WO8802989 |
| OPPOSITION | WO9524459 |
| SEARCH | EP2172558 |
| SEARCH | WO2004007654 |
| SEARCH | WO2004007655 |
| SEARCH | WO2004043894 |
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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Description
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Feb 23, 2023
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Refund of fees
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(Electronic) Receipt
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Decision to grant a European patent
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Filing of the translations of the claims
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French translation of claims
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German translation of the claims
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Payment of fees and costs
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Amended claims with annotations
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Amended description with annotations
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Description
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Annex to the communication
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Communication from the Examining Division
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Amended claims with annotations
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Description
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Annex to the communication
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Communication from the Examining Division
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European search opinion
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Supplementary European search report
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Search started
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Notification of forthcoming publication
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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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Abstract
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Description
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Drawings
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Request for entry into the European phase
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Jul 12, 2013
Information on entry into European phase
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Sep 24, 2012
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Copy of the international search report
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International publication pamphlet
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