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The patent EP3075776 was granted to Zeon on Jul 27, 2022. The application was filed on Nov 26, 2014 under application number EP14866001A. 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 |
|---|---|---|---|
| ARLANXEO DEUTSCHLAND | May 26, 2020 | MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JPS6395242 |
| INTERNATIONAL-SEARCH-REPORT | JP2001146540 |
| INTERNATIONAL-SEARCH-REPORT | JP2003192848 |
| INTERNATIONAL-SEARCH-REPORT | JPH0711235 |
| INTERNATIONAL-SEARCH-REPORT | JPS6395242 |
| INTERNATIONAL-SEARCH-REPORT | WO2013175877 |
| INTERNATIONAL-SEARCH-REPORT | WO2013175878 |
| INTERNATIONAL-SEARCH-REPORT | WO2014024698 |
| OPPOSITION | EP2392599 |
| OPPOSITION | US2003096071 |
| OPPOSITION | US2013280459 |
| SEARCH | EP1449873 |
| SEARCH | EP2857447 |
| SEARCH | EP2857448 |
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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Authorisation
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Authorisation
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Sep 9, 2019
Aug 1, 2019
Decision to grant a European patent
Search/Exam
Jul 18, 2019
(Electronic) Receipt
Search/Exam
Jul 18, 2019
Filing of the translations of the claims
Search/Exam
Jul 18, 2019
French translation of claims
Search/Exam
Jul 18, 2019
German translation of the claims
Search/Exam
Jul 18, 2019
Letter accompanying subsequently filed items
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Mar 21, 2019
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Intention to grant (signatures)
Search/Exam
Mar 21, 2019
Text intended for grant (clean copy)
Search/Exam
Mar 21, 2019
Feb 1, 2019
Examination started
Search/Exam
Apr 4, 2018
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Amended claims with annotations
Search/Exam
Apr 4, 2018
Amendments received before examination
Search/Exam
Apr 4, 2018
Amendments received before examination
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Oct 20, 2017
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European search opinion
Search/Exam
Oct 4, 2017
Information on Search Strategy
Search/Exam
Oct 4, 2017
Supplementary European search report
Search/Exam
Sep 22, 2017
Search started
Search/Exam
Feb 3, 2017
Sep 7, 2016
Notification of forthcoming publication
Search/Exam
Jul 1, 2016
Communication to designated inventor
Search/Exam
Jul 1, 2016
Communication to designated inventor
Search/Exam
Jun 14, 2016
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May 30, 2016
Non-patent literature filed by a third party
Search/Exam
May 30, 2016
Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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May 30, 2016
Observations by third parties
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May 20, 2016
(Electronic) Receipt
Search/Exam
May 20, 2016
Abstract
Search/Exam
May 20, 2016
Claims
Search/Exam
May 20, 2016
Description
Search/Exam
May 20, 2016
Request for entry into the European phase
Search/Exam
Apr 8, 2016
Information on entry into European phase
Search/Exam
Jun 23, 2015
Jun 4, 2015
Copy of the international search report
Search/Exam
Jun 4, 2015
Jun 4, 2015
International publication pamphlet
Search/Exam