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The patent EP3296395 was granted to Chugai Seiyaku Kabushiki Kaisha on Jun 19, 2024. The application was filed on May 13, 2016 under application number EP16792788A. 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 |
|---|---|---|---|
| JAMES POOLE | Mar 25, 2022 | CARPMAELS & RANSFORD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2013528569 |
| INTERNATIONAL-SEARCH-REPORT | JP2014519322 |
| INTERNATIONAL-SEARCH-REPORT | JP2015509951 |
| INTERNATIONAL-SEARCH-REPORT | JP2015509952 |
| INTERNATIONAL-SEARCH-REPORT | WO2012073985 |
| INTERNATIONAL-SEARCH-REPORT | WO2014144722 |
| INTERNATIONAL-SEARCH-REPORT | WO2015046554 |
| INTERNATIONAL-SEARCH-REPORT | WO2016014974 |
| INTERNATIONAL-SEARCH-REPORT | WO2016046778 |
| OPPOSITION | EP3070168 |
| OPPOSITION | JP2015098208 |
| OPPOSITION | WO2011121110 |
| OPPOSITION | WO2013128027 |
| OPPOSITION | WO2013128194 |
| OPPOSITION | WO2014144722 |
| OPPOSITION | WO2015013671 |
| OPPOSITION | WO2016014974 |
| OPPOSITION | WO2016046778 |
| OPPOSITION | WO2016179003 |
| SEARCH | WO2013128194 |
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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Means of redress
OPPO
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Decision to grant a European patent
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May 20, 2021
(Electronic) Receipt
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May 20, 2021
Filing of the translations of the claims
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May 20, 2021
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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Text intended for grant (sequence listing)
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(Electronic) Receipt
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Feb 5, 2021
French translation of claims
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Feb 5, 2021
German translation of the claims
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Feb 5, 2021
Letter accompanying subsequently filed items
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Feb 5, 2021
Sep 30, 2020
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Converted Sequence Listing
Search/Exam
Sep 30, 2020
Intention to grant (signatures)
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Sep 30, 2020
Text intended for grant (clean copy)
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Sep 30, 2020
Aug 11, 2020
(Electronic) Receipt
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Aug 11, 2020
Amended description with annotations
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Aug 11, 2020
Description
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Aug 11, 2020
Letter accompanying subsequently filed items
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Aug 11, 2020
Jun 18, 2020
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(Electronic) Receipt
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Jun 15, 2020
Letter accompanying subsequently filed items
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Jun 15, 2020
Feb 7, 2020
Annex to the communication
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Feb 7, 2020
Communication from the Examining Division
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Jan 23, 2020
Examination started
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Sep 26, 2019
Decision to allow further processing
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Sep 16, 2019
(Electronic) Receipt
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Sep 16, 2019
Sep 16, 2019
Amended claims with annotations
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Sep 16, 2019
Letter accompanying subsequently filed items
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Sep 16, 2019
Request for further processing
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Jul 12, 2019
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Maintenance of the application
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Nov 23, 2018
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European search opinion
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Nov 6, 2018
Information on Search Strategy
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Nov 6, 2018
Supplementary European search report
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Oct 17, 2018
Search started
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Feb 21, 2018
Notification of forthcoming publication
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Jan 4, 2018
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Communication to designated inventor
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Communication to designated inventor
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Jan 2, 2018
Communication to designated inventor
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Dec 13, 2017
(Electronic) Receipt
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Dec 13, 2017
Abstract
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Dec 13, 2017
Dec 13, 2017
Amended claims with annotations
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Dec 13, 2017
Amendments received before examination
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Dec 13, 2017
Claims
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Dec 13, 2017
Converted Sequence Listing
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Dec 13, 2017
Description
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Dec 13, 2017
Drawings
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Dec 13, 2017
Request for entry into the European phase
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Nov 27, 2017
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Sep 22, 2017
Information on entry into European phase
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Dec 5, 2016
Nov 17, 2016
Converted Sequence Listing
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Nov 17, 2016
Copy of the international search report
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Nov 17, 2016
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International publication pamphlet
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