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The patent EP2138486 was granted to Nippon Steel Chemical on Oct 19, 2022. The application was filed on Mar 24, 2008 under application number EP08738758A. 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 |
|---|---|---|---|
| MERCK PATENT | Jul 30, 2018 | - | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2001313178 |
| DESCRIPTION | JP2003515897 |
| DESCRIPTION | JP2006076901 |
| DESCRIPTION | WO03078541 |
| DESCRIPTION | WO2005076668 |
| EXAMINATION | JP2005186607 |
| EXAMINATION | JPS4954387 |
| INTERNATIONAL-SEARCH-REPORT | JP2004500455 |
| INTERNATIONAL-SEARCH-REPORT | JP2005186607 |
| INTERNATIONAL-SEARCH-REPORT | JP2006080271 |
| INTERNATIONAL-SEARCH-REPORT | JP2007077033 |
| INTERNATIONAL-SEARCH-REPORT | JP2007180147 |
| INTERNATIONAL-SEARCH-REPORT | JPS4954387 |
| INTERNATIONAL-SEARCH-REPORT | WO03078541 |
| INTERNATIONAL-SEARCH-REPORT | WO2005076668 |
| INTERNATIONAL-SEARCH-REPORT | WO2007063754 |
| INTERNATIONAL-SEARCH-REPORT | WO2008056746 |
| OPPOSITION | EP1486550 |
| OPPOSITION | EP2080762 |
| OPPOSITION | JP2004171808 |
| OPPOSITION | JP2006080271 |
| OPPOSITION | JP2006303733 |
| OPPOSITION | JP2006306783 |
| OPPOSITION | WO0149769 |
| OTHER | EP2080762 |
| SEARCH | EP1486550 |
| SEARCH | EP1715728 |
| SEARCH | EP1718121 |
| SEARCH | EP1956022 |
| SEARCH | EP2080762 |
| SEARCH | US2005221124 |
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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Sep 22, 2022
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Refund of fees
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Communication from the Legal Division
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Mar 25, 2019
Letter to the Legal Division
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Request for correction
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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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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Annex to the communication
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Consultation by telephone/in person
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Observations by third parties
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Amended description with annotations
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Description
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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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Submission concerning representation
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Decision to allow further processing
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Jun 19, 2013
Amended claims with annotations
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Jun 19, 2013
Claims
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Jun 19, 2013
Payment of fees and costs
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Request for further processing
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Annex to the communication
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Communication from the Examining Division
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Amendments received before examination
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European search opinion
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Jan 30, 2012
Supplementary European search report
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Jan 22, 2010
Dec 2, 2009
Notification of forthcoming publication
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Nov 4, 2009
Oct 15, 2009
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(Electronic) Receipt
Search/Exam
Oct 13, 2009
Abstract
Search/Exam
Oct 13, 2009
Claims
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Oct 13, 2009
Description
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Drawings
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Request for entry into the European phase
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Information on entry into European phase
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Copy of the international search report
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International publication pamphlet
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