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The patent EP2789659 was granted to Nippon Sheet Glass on Aug 17, 2022. The application was filed on Dec 7, 2012 under application number EP12856041A. 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 |
|---|---|---|---|
| SUN CHEMICAL COLORS & EFFECTS | Jan 11, 2019 | ALTMANN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2001031421 |
| DESCRIPTION | JP2002509561 |
| DESCRIPTION | JP2005187782 |
| DESCRIPTION | JP2010538096 |
| INTERNATIONAL-SEARCH-REPORT | JP2003055573 |
| INTERNATIONAL-SEARCH-REPORT | JP2004168940 |
| INTERNATIONAL-SEARCH-REPORT | JP2008045097 |
| INTERNATIONAL-SEARCH-REPORT | JP2010031166 |
| INTERNATIONAL-SEARCH-REPORT | JPH06240172 |
| INTERNATIONAL-SEARCH-REPORT | WO2008136471 |
| INTERNATIONAL-SEARCH-REPORT | WO2009154064 |
| OPPOSITION | EP1980594 |
| OPPOSITION | US2006223910 |
| OPPOSITION | US2010297045 |
| OPPOSITION | US2011226161 |
| OPPOSITION | WO2007054379 |
| OPPOSITION | WO2009037457 |
| OPPOSITION | WO9746624 |
| SEARCH | EP2287124 |
| SEARCH | EP2325147 |
| SEARCH | US2008035017 |
| SEARCH | US6045914 |
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
Search/Exam
Mar 7, 2018
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(Electronic) Receipt
Search/Exam
Jan 30, 2018
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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Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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(Electronic) Receipt
Search/Exam
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Amended description with annotations
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Description
Search/Exam
Jul 27, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 27, 2017
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Annex to the communication
Search/Exam
Mar 17, 2017
Communication from the Examining Division
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Mar 9, 2017
Examination started
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(Electronic) Receipt
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Amendments received before examination
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Apr 1, 2016
Letter accompanying subsequently filed items
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European search opinion
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Sep 8, 2015
Supplementary European search report
Search/Exam
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Search started
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Payment of fees and costs
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Dec 18, 2014
Payment of fees and costs
Search/Exam
Sep 17, 2014
Notification of forthcoming publication
Search/Exam
Aug 5, 2014
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Communication to designated inventor
Search/Exam
Jul 9, 2014
(Electronic) Receipt
Search/Exam
Jul 9, 2014
Abstract
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Claims
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Jul 9, 2014
Description
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Designation of inventor
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Jul 9, 2014
Drawings
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Jul 9, 2014
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
Search/Exam
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International publication pamphlet
Search/Exam