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The patent EP3416200 was granted to Sunman Shanghai on Jul 14, 2021. The application was filed on Jan 23, 2017 under application number EP17840709A. 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 |
|---|---|---|---|
| DAS ENERGY | Feb 23, 2022 | BEER & PARTNER PATENTANWALTE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CN102315285 |
| INTERNATIONAL-SEARCH-REPORT | CN102456758 |
| INTERNATIONAL-SEARCH-REPORT | CN103059676 |
| INTERNATIONAL-SEARCH-REPORT | CN105637653 |
| INTERNATIONAL-SEARCH-REPORT | CN106299000 |
| OPPOSITION | EP2623314 |
| OPPOSITION | EP2863443 |
| OPPOSITION | EP3416200 |
| OPPOSITION | WO2006076748 |
| SEARCH | EP0769818 |
| SEARCH | EP0836233 |
| SEARCH | EP2623314 |
| SEARCH | EP2863443 |
| SEARCH | WO2014075058 |
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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Dec 9, 2025
Dec 4, 2025
(Electronic) Receipt
Appeal
Dec 4, 2025
Dec 4, 2025
Nov 21, 2025
Nov 21, 2025
Nov 7, 2025
Nov 7, 2025
Nov 4, 2025
Oct 28, 2025
Jun 30, 2025
Jun 30, 2025
Jun 16, 2025
Oct 24, 2024
Oct 21, 2024
(Electronic) Receipt
Appeal
Oct 21, 2024
(Electronic) Receipt
Appeal
Oct 21, 2024
Oct 21, 2024
Oct 21, 2024
Reply to appeal
Appeal
Oct 21, 2024
Reply to appeal
Appeal
Jun 21, 2024
Jun 17, 2024
(Electronic) Receipt
Appeal
Jun 17, 2024
Jun 17, 2024
Jun 17, 2024
Jun 17, 2024
Jun 17, 2024
Jun 17, 2024
Jun 17, 2024
Mar 20, 2024
Mar 20, 2024
Mar 14, 2024
(Electronic) Receipt
Appeal
Mar 14, 2024
Mar 14, 2024
Notice of appeal
Appeal
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Means of redress
OPPO
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 13, 2024
Jan 25, 2024
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Dec 13, 2023
Nov 29, 2023
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Nov 24, 2023
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Nov 24, 2023
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Feb 13, 2023
Feb 10, 2023
Feb 9, 2023
Feb 9, 2023
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Feb 9, 2023
Feb 9, 2023
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Jan 17, 2023
Jan 17, 2023
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Sep 21, 2022
Sep 16, 2022
Sep 16, 2022
Sep 16, 2022
Sep 16, 2022
Sep 16, 2022
Sep 16, 2022
Sep 5, 2022
Sep 5, 2022
Sep 5, 2022
Aug 29, 2022
Authorisation
OPPO
Aug 29, 2022
May 4, 2022
May 4, 2022
Mar 3, 2022
Feb 23, 2022
Feb 23, 2022
Feb 23, 2022
Feb 23, 2022
Feb 23, 2022
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Feb 23, 2022
Feb 23, 2022
Feb 23, 2022
Feb 23, 2022
Jul 27, 2021
Jun 17, 2021
Decision to grant a European patent
Search/Exam
May 31, 2021
(Electronic) Receipt
Search/Exam
May 31, 2021
Letter accompanying subsequently filed items
Search/Exam
May 31, 2021
Matter concerning the application
Search/Exam
Apr 8, 2021
Mar 19, 2021
Communication from the Legal Division
Search/Exam
Mar 15, 2021
(Electronic) Receipt
Search/Exam
Mar 15, 2021
Authorisation
Search/Exam
Mar 15, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 15, 2021
Letter to the Legal Division
Search/Exam
Feb 3, 2021
Jan 25, 2021
Communication from the Legal Division
Search/Exam
Jan 11, 2021
Jan 5, 2021
Letter to the Legal Division
Search/Exam
Dec 4, 2020
Annex
Search/Exam
Dec 4, 2020
Annex
Search/Exam
Dec 4, 2020
Letter to the Legal Division
Search/Exam
Nov 19, 2020
Decision to grant a European patent
Search/Exam
Nov 4, 2020
(Electronic) Receipt
Search/Exam
Nov 4, 2020
Filing of the translations of the claims
Search/Exam
Nov 4, 2020
French translation of claims
Search/Exam
Nov 4, 2020
German translation of the claims
Search/Exam
Nov 4, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 13, 2020
Jul 13, 2020
Jul 13, 2020
Intention to grant (signatures)
Search/Exam
Jul 13, 2020
Text intended for grant (clean copy)
Search/Exam
Jul 13, 2020
Jan 18, 2020
(Electronic) Receipt
Search/Exam
Jan 18, 2020
Amended claims with annotations
Search/Exam
Jan 18, 2020
Claims
Search/Exam
Jan 18, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 18, 2020
Jan 15, 2020
Jan 9, 2020
(Electronic) Receipt
Search/Exam
Jan 9, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 9, 2020
Sep 10, 2019
Annex to the communication
Search/Exam
Sep 10, 2019
Communication from the Examining Division
Search/Exam
Aug 16, 2019
(Electronic) Receipt
Search/Exam
Aug 16, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 16, 2019
Priority search results
Search/Exam
Aug 16, 2019
Jun 28, 2019
Jun 21, 2019
Jun 21, 2019
Information on Search Strategy
Search/Exam
Jun 21, 2019
Supplementary European search report
Search/Exam
May 10, 2019
Search started
Search/Exam
Mar 5, 2019
Mar 5, 2019
Feb 6, 2019
Refund of fees
Search/Exam
Dec 13, 2018
Dec 13, 2018
Nov 21, 2018
Notification of forthcoming publication
Search/Exam
Oct 26, 2018
Oct 26, 2018
Oct 4, 2018
Communication to designated inventor
Search/Exam
Oct 4, 2018
Communication to designated inventor
Search/Exam
Oct 4, 2018
Communication to designated inventor
Search/Exam
Oct 4, 2018
Communication to designated inventor
Search/Exam
Oct 4, 2018
Communication to designated inventor
Search/Exam
Oct 4, 2018
Communication to designated inventor
Search/Exam
Oct 4, 2018
Communication to designated inventor
Search/Exam
Oct 4, 2018
Oct 4, 2018
Enquiry with the International Bureau
Search/Exam
Sep 10, 2018
(Electronic) Receipt
Search/Exam
Sep 10, 2018
Abstract
Search/Exam
Sep 10, 2018
Authorisation
Search/Exam
Sep 10, 2018
Claims
Search/Exam
Sep 10, 2018
Description
Search/Exam
Sep 10, 2018
Designation of inventor
Search/Exam
Sep 10, 2018
Drawings
Search/Exam
Sep 10, 2018
Request for entry into the European phase
Search/Exam
May 16, 2018
Notification of the recording of a change
Search/Exam
May 16, 2018
Notification of the recording of a change
Search/Exam
Mar 12, 2018
Feb 22, 2018
Copy of the international search report
Search/Exam
Feb 22, 2018
Feb 22, 2018
International publication pamphlet
Search/Exam