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The patent EP3846426 was granted to Vivo Mobile Communication on Aug 30, 2023. The application was filed on Jul 16, 2019 under application number EP19854928A. 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 |
|---|---|---|---|
| PETERREINS SCHLEY PATENT UND RECHTSANWALTE PARTG MBB | May 31, 2024 | PETERREINS SCHLEY | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CN103208283 |
| INTERNATIONAL-SEARCH-REPORT | CN107608957 |
| INTERNATIONAL-SEARCH-REPORT | CN109218526 |
| INTERNATIONAL-SEARCH-REPORT | WO2010141802 |
| SEARCH | US2015149354 |
| SEARCH | US2017110128 |
| SEARCH | US2018091643 |
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 11, 2025
Dec 11, 2025
Dec 5, 2025
(Electronic) Receipt
Appeal
Dec 5, 2025
Notice of appeal
Appeal
Dec 5, 2025
Notice of appeal
Appeal
Dec 2, 2025
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Means of redress
OPPO
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Sep 12, 2023
Aug 3, 2023
Decision to grant a European patent
Search/Exam
Jul 25, 2023
(Electronic) Receipt
Search/Exam
Jul 25, 2023
Filing of the translations of the claims
Search/Exam
Jul 25, 2023
French translation of claims
Search/Exam
Jul 25, 2023
German translation of the claims
Search/Exam
Jun 1, 2023
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Intention to grant (signatures)
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Jun 1, 2023
Text intended for grant (clean copy)
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Jun 1, 2023
May 10, 2023
Examination started
Search/Exam
May 2, 2022
(Electronic) Receipt
Search/Exam
May 2, 2022
May 2, 2022
Amended claims with annotations
Search/Exam
May 2, 2022
May 2, 2022
Amended description with annotations
Search/Exam
May 2, 2022
Amendments received before examination
Search/Exam
May 2, 2022
Letter accompanying subsequently filed items
Search/Exam
Oct 28, 2021
Oct 11, 2021
Oct 11, 2021
European search opinion
Search/Exam
Oct 11, 2021
Information on Search Strategy
Search/Exam
Oct 11, 2021
Supplementary European search report
Search/Exam
Sep 27, 2021
Search started
Search/Exam
Jun 9, 2021
Notification of forthcoming publication
Search/Exam
Apr 7, 2021
Change to the inventor details
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Mar 30, 2021
(Electronic) Receipt
Search/Exam
Mar 30, 2021
Abstract
Search/Exam
Mar 30, 2021
Mar 30, 2021
Amended claims with annotations
Search/Exam
Mar 30, 2021
Mar 30, 2021
Amended description with annotations
Search/Exam
Mar 30, 2021
Mar 30, 2021
Amendments received before examination
Search/Exam
Mar 30, 2021
Claims
Search/Exam
Mar 30, 2021
Description
Search/Exam
Mar 30, 2021
Drawings
Search/Exam
Mar 30, 2021
Request for entry into the European phase
Search/Exam
Mar 15, 2021
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Jan 15, 2021
Information on entry into European phase
Search/Exam
Mar 26, 2020
Mar 5, 2020
Copy of the international search report
Search/Exam
Mar 5, 2020
Mar 5, 2020
International publication pamphlet
Search/Exam