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The patent EP2368849 was granted to Tosoh on Mar 19, 2025. The application was filed on Dec 21, 2009 under application number EP09834841A. 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 |
|---|---|---|---|
| SUD CHEMIE INDIA PVT | Jul 18, 2018 | FORREST | ADMISSIBLE |
| SUD CHEMIE INDIA PVT | Jul 18, 2018 | MULLHOLLAND | ADMISSIBLE |
| CLARIANT PRODUKTE DEUTSCHLAND | Jul 17, 2018 | KUBA | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | GB868846 |
| DESCRIPTION | JP2001525241 |
| DESCRIPTION | JP2002512083 |
| DESCRIPTION | JP2005503260 |
| DESCRIPTION | JP2007534582 |
| DESCRIPTION | JPH0578266 |
| DESCRIPTION | JPH0859566 |
| DESCRIPTION | JPH09124578 |
| DESCRIPTION | JPS6092221 |
| DESCRIPTION | US3030181 |
| DESCRIPTION | US4544538 |
| DESCRIPTION | US4665110 |
| DESCRIPTION | US6488741 |
| DESCRIPTION | US6709644 |
| INTERNATIONAL-SEARCH-REPORT | JP2005503260 |
| INTERNATIONAL-SEARCH-REPORT | JP2007534582 |
| INTERNATIONAL-SEARCH-REPORT | US2003069449 |
| INTERNATIONAL-SEARCH-REPORT | US4544538 |
| INTERNATIONAL-SEARCH-REPORT | US4665110 |
| INTERNATIONAL-SEARCH-REPORT | WO2008016477 |
| OPPOSITION | EP0227168 |
| OPPOSITION | EP1424128 |
| OPPOSITION | EP1728551 |
| OPPOSITION | EP2011570 |
| OPPOSITION | EP2603457 |
| OPPOSITION | EP4075280 |
| OPPOSITION | US2003069449 |
| OPPOSITION | US2007032379 |
| OPPOSITION | US2008241060 |
| OPPOSITION | US2010092362 |
| OPPOSITION | US4519933 |
| OPPOSITION | US4544538 |
| OPPOSITION | US4665110 |
| OPPOSITION | US5488022 |
| OPPOSITION | US5705466 |
| OPPOSITION | WO2005063622 |
| OPPOSITION | WO2005065635 |
| SEARCH | JP2007534582 |
| SEARCH | US4544538 |
| SEARCH | US4665110 |
| SEARCH | WO2005063622 |
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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Advice of delivery
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Advice of delivery
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Reply to appeal
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Appeal
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Oct 26, 2017
Sep 21, 2017
Decision to grant a European patent
Search/Exam
Aug 28, 2017
Aug 2, 2017
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Payment of fees and costs
Search/Exam
Jun 27, 2017
Filing of the translations of the claims
Search/Exam
Jun 27, 2017
French translation of claims
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Jun 27, 2017
German translation of the claims
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Jun 2, 2017
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Observations by third parties
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Intention to grant (signatures)
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Apr 12, 2017
Text intended for grant (clean copy)
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Apr 12, 2017
Jan 25, 2016
Amended claims with annotations
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Jan 25, 2016
Amended description with annotations
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Jan 25, 2016
Claims
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Jan 25, 2016
Description
Search/Exam
Jan 25, 2016
Sep 25, 2015
Annex to the communication
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Sep 25, 2015
Communication from the Examining Division
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Aug 24, 2015
Examination started
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Feb 12, 2015
Feb 5, 2015
Mar 31, 2014
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Amended claims with annotations
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Mar 31, 2014
Amendments received before examination
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Feb 4, 2014
Submission concerning representation
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Dec 13, 2013
Submission concerning representation
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Oct 7, 2013
Sep 18, 2013
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European search opinion
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Sep 18, 2013
Supplementary European search report
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Aug 23, 2013
Search started
Search/Exam
Feb 6, 2013
General enquiry
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Oct 19, 2011
Abstract
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Oct 19, 2011
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Matter concerning the application
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Aug 31, 2011
Notification of forthcoming publication
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Aug 23, 2011
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Abstract
Search/Exam
May 20, 2011
Claims
Search/Exam
May 20, 2011
Description
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May 20, 2011
Drawings
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May 20, 2011
Request for entry into the European phase
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May 9, 2011
Information on entry into European phase
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Jul 22, 2010
Jul 1, 2010
Copy of the international search report
Search/Exam
Jul 1, 2010
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International publication pamphlet
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