The patent EP3441466 was granted to Seikagaku on Feb 5, 2020. The application was originally filed on Dec 10, 2013 under application number EP18190686A. The patent is currently recorded with a legal status of "Revoked".

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US5712144 |
| DESCRIPTION | WO2008004674 |
| DESCRIPTION | WO2012118226 |
| OPPOSITION | US5858706 |
| OPPOSITION | US6645724 |
| SEARCH | EP2050820 |
| SEARCH | WO2012118226 |
| SEARCH | WO9915676 |
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
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Date
Description
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Jul 17, 2024
Refund of fees
Appeal
Jul 15, 2024
Jul 15, 2024
Jul 15, 2024
Jul 15, 2024
Jul 15, 2024
Jul 10, 2024
(Electronic) Receipt
Appeal
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Withdrawal of an appeal
Appeal
May 28, 2024
May 28, 2024
Apr 18, 2024
Apr 18, 2024
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Apr 18, 2024
Apr 15, 2024
Apr 15, 2024
Jul 21, 2023
Jul 12, 2023
(Electronic) Receipt
Appeal
Jul 12, 2023
Jul 12, 2023
Reply to appeal
Appeal
Mar 2, 2023
Feb 24, 2023
(Electronic) Receipt
Appeal
Feb 24, 2023
Feb 24, 2023
Jan 9, 2023
Jan 9, 2023
Dec 22, 2022
(Electronic) Receipt
Appeal
Dec 22, 2022
Dec 22, 2022
Notice of appeal
Appeal
Oct 26, 2022
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OPPO
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Feb 17, 2020
Jan 10, 2020
Decision to grant a European patent
Search/Exam
Dec 2, 2019
(Electronic) Receipt
Search/Exam
Dec 2, 2019
Filing of the translations of the claims
Search/Exam
Dec 2, 2019
French translation of claims
Search/Exam
Dec 2, 2019
German translation of the claims
Search/Exam
Dec 2, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 13, 2019
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Intention to grant (signatures)
Search/Exam
Aug 13, 2019
Text intended for grant (clean copy)
Search/Exam
Aug 13, 2019
Text intended for grant (sequence listing)
Search/Exam
Aug 13, 2019
May 8, 2019
(Electronic) Receipt
Search/Exam
May 8, 2019
Amended claims with annotations
Search/Exam
May 8, 2019
Amended description with annotations
Search/Exam
May 8, 2019
Claims
Search/Exam
May 8, 2019
Description
Search/Exam
May 8, 2019
Letter accompanying subsequently filed items
Search/Exam
May 8, 2019
Mar 15, 2019
Annex to the communication
Search/Exam
Mar 15, 2019
Communication from the Examining Division
Search/Exam
Mar 8, 2019
Examination started
Search/Exam
Feb 18, 2019
Feb 7, 2019
(Electronic) Receipt
Search/Exam
Feb 7, 2019
Feb 7, 2019
Amended claims with annotations
Search/Exam
Feb 7, 2019
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Amended description with annotations
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Feb 7, 2019
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Amended drawings with annotations
Search/Exam
Feb 7, 2019
Amendments received before examination
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Feb 7, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 7, 2019
Written request for examination
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Jan 18, 2019
Refund of fees
Search/Exam
Jan 16, 2019
Notification of forthcoming publication
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Jan 10, 2019
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European search opinion
Search/Exam
Jan 10, 2019
European search report
Search/Exam
Jan 10, 2019
Information on Search Strategy
Search/Exam
Dec 14, 2018
Search started
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Oct 23, 2018
Communication to designated inventor
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Oct 23, 2018
Communication to designated inventor
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Oct 23, 2018
Communication to designated inventor
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Aug 24, 2018
Abstract
Search/Exam
Aug 24, 2018
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Claims
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Aug 24, 2018
Converted Sequence Listing
Search/Exam
Aug 24, 2018
Description
Search/Exam
Aug 24, 2018
Designation of inventor
Search/Exam
Aug 24, 2018
Drawings
Search/Exam
Aug 24, 2018
Letter concerning search matters
Search/Exam
Aug 24, 2018
Matter concerning the application
Search/Exam
Aug 24, 2018
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Sequence listing
Search/Exam
Jul 7, 2014