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The patent EP2864307 was granted to Eastman Chemical on Mar 7, 2018. The application was filed on Jun 10, 2013 under application number EP13729903A. 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 |
|---|---|---|---|
| SYNVINA CV | Dec 7, 2018 | WURFBAIN | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | WO02098836 |
| INTERNATIONAL-SEARCH-REPORT | WO2008054804 |
| INTERNATIONAL-SEARCH-REPORT | WO2009023174 |
| OPPOSITION | EP0469327 |
| OPPOSITION | EP1671938 |
| OPPOSITION | JP2009242312 |
| OPPOSITION | US2011092720 |
| OPPOSITION | US3584039 |
| OPPOSITION | US4263452 |
| OPPOSITION | US4405809 |
| OPPOSITION | US4629715 |
| OPPOSITION | US5354898 |
| OPPOSITION | US6265608 |
| OPPOSITION | WO02098836 |
| OPPOSITION | WO2006071407 |
| OPPOSITION | WO2009023174 |
| OPPOSITION | WO2010132740 |
| OPPOSITION | WO2011043660 |
| OPPOSITION | WO2011043661 |
| OPPOSITION | WO9619430 |
| OPPOSITION | WO9929652 |
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.
Date
Description
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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Claims
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Dec 21, 2018
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Mar 19, 2018
Feb 8, 2018
Decision to grant a European patent
Search/Exam
Jan 23, 2018
(Electronic) Receipt
Search/Exam
Jan 23, 2018
Filing of the translations of the claims
Search/Exam
Jan 23, 2018
French translation of claims
Search/Exam
Jan 23, 2018
German translation of the claims
Search/Exam
Jan 23, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 20, 2017
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Intention to grant (signatures)
Search/Exam
Oct 20, 2017
Text intended for grant (clean copy)
Search/Exam
Oct 20, 2017
Aug 30, 2017
Description
Search/Exam
Aug 30, 2017
Jun 30, 2017
Jun 28, 2017
Annex to the communication
Search/Exam
Jun 28, 2017
Jun 28, 2017
Jun 6, 2017
Amended claims with annotations
Search/Exam
Jun 6, 2017
Amended claims with annotations
Search/Exam
Jun 6, 2017
Claims
Search/Exam
Jun 6, 2017
Claims
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Jun 6, 2017
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Dec 19, 2016
Advice of delivery
Search/Exam
Dec 14, 2016
Advice of delivery
Search/Exam
Dec 13, 2016
Acknowledgement of a document
Search/Exam
Dec 13, 2016
Annex to the communication
Search/Exam
Dec 13, 2016
Summons to attend oral proceedings
Search/Exam
Dec 7, 2016
Preparation for oral proceedings
Search/Exam
Oct 13, 2016
Submission concerning representation
Search/Exam
Sep 2, 2016
Apr 25, 2016
Annex to the communication
Search/Exam
Apr 25, 2016
Communication from the Examining Division
Search/Exam
Apr 14, 2016
Examination started
Search/Exam
Sep 7, 2015
Sep 7, 2015
Amended claims with annotations
Search/Exam
Sep 7, 2015
Sep 7, 2015
Amendments received before examination
Search/Exam
Apr 1, 2015
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Communication to designated inventor
Search/Exam
Jan 27, 2015
Communication to designated inventor
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Jan 27, 2015
Communication to designated inventor
Search/Exam
Jan 27, 2015
Communication to designated inventor
Search/Exam
Jan 7, 2015
Dec 1, 2014
Payment of fees and costs
Search/Exam
Dec 1, 2014
Request for entry into the European phase
Search/Exam
Oct 31, 2014
Information on entry into European phase
Search/Exam
Jan 14, 2014
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Dec 27, 2013
Copy of the international search report
Search/Exam
Dec 27, 2013
Published international application - A1
Search/Exam
Jul 26, 2013
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Jun 19, 2013
Abstract
PCTISA
Jun 19, 2013
Claims
PCTISA
Jun 19, 2013
Description
PCTISA
Jun 19, 2013
Drawings
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