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The patent EP3251300 was granted to Nokia Solutions And Networks on Sep 13, 2023. The application was filed on Jan 30, 2015 under application number EP15880512A. 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 |
|---|---|---|---|
| GUANGDONG OPPO MOBILE TELECOMMUNICATIONS | Oct 6, 2021 | FRENKEL | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2012113816 |
| INTERNATIONAL-SEARCH-REPORT | US2013196675 |
| OPPOSITION | CN103220703 |
| OPPOSITION | CN103516449 |
| OPPOSITION | EP2717621 |
| OPPOSITION | EP2747494 |
| OPPOSITION | EP2797353 |
| OPPOSITION | US2012315859 |
| OPPOSITION | US2013196675 |
| OPPOSITION | US2014112184 |
| OPPOSITION | US2014177601 |
| OPPOSITION | US2014204765 |
| OPPOSITION | US2015010106 |
| OPPOSITION | WO2012061749 |
| OPPOSITION | WO2013131401 |
| OPPOSITION | WO2013133596 |
| OPPOSITION | WO2013138984 |
| OPPOSITION | WO2014062029 |
| OPPOSITION | WO2014092475 |
| SEARCH | US2014204765 |
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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Aug 18, 2023
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Aug 11, 2023
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Refund of fees
Appeal
May 3, 2023
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Apr 26, 2023
Apr 25, 2023
(Electronic) Receipt
Appeal
Apr 25, 2023
Apr 25, 2023
Withdrawal of an appeal
Appeal
Mar 31, 2023
Mar 31, 2023
Mar 27, 2023
(Electronic) Receipt
Appeal
Mar 27, 2023
Mar 27, 2023
Notice of appeal
Appeal
Jan 18, 2023
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Means of redress
OPPO
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Jan 20, 2021
Dec 10, 2020
Decision to grant a European patent
Search/Exam
Dec 7, 2020
Refund of fees
Search/Exam
Nov 25, 2020
(Electronic) Receipt
Search/Exam
Nov 25, 2020
Filing of the translations of the claims
Search/Exam
Nov 25, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 3, 2020
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Nov 3, 2020
Intention to grant (signatures)
Search/Exam
Nov 3, 2020
Text intended for grant (clean copy)
Search/Exam
Nov 3, 2020
Sep 30, 2020
(Electronic) Receipt
Search/Exam
Sep 30, 2020
Amended claims with annotations
Search/Exam
Sep 30, 2020
Claims
Search/Exam
Sep 30, 2020
French translation of claims
Search/Exam
Sep 30, 2020
German translation of the claims
Search/Exam
Sep 30, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 30, 2020
Jun 24, 2020
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Text intended for grant (clean copy)
Search/Exam
Jun 24, 2020
Jan 28, 2020
Jan 3, 2020
(Electronic) Receipt
Search/Exam
Jan 3, 2020
Amended claims with annotations
Search/Exam
Jan 3, 2020
Claims
Search/Exam
Jan 3, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 3, 2020
Dec 5, 2019
Annex to the communication
Search/Exam
Dec 5, 2019
Communication from the Examining Division
Search/Exam
Nov 29, 2019
Examination started
Search/Exam
Aug 13, 2019
Submission concerning representation
Search/Exam
Jul 31, 2019
Jul 24, 2019
Jul 9, 2019
Submission concerning representation
Search/Exam
Mar 12, 2019
(Electronic) Receipt
Search/Exam
Mar 12, 2019
Mar 12, 2019
Amended claims with annotations
Search/Exam
Mar 12, 2019
Mar 12, 2019
Amended description with annotations
Search/Exam
Mar 12, 2019
Amendments received before examination
Search/Exam
Mar 12, 2019
Letter accompanying subsequently filed items
Search/Exam
Sep 13, 2018
Aug 27, 2018
Aug 27, 2018
European search opinion
Search/Exam
Aug 27, 2018
Information on Search Strategy
Search/Exam
Aug 27, 2018
Supplementary European search report
Search/Exam
Nov 27, 2017
Nov 8, 2017
Letter which had not been notified
Search/Exam
Nov 8, 2017
Oct 13, 2017
Submission concerning representation
Search/Exam
Sep 6, 2017
Sep 4, 2017
Communication to designated inventor
Search/Exam
Sep 4, 2017
Communication to designated inventor
Search/Exam
Sep 4, 2017
Communication to designated inventor
Search/Exam
Aug 14, 2017
Aug 10, 2017
(Electronic) Receipt
Search/Exam
Aug 10, 2017
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Request for entry into the European phase
Search/Exam
Jun 9, 2017
Information on entry into European phase
Search/Exam
Aug 4, 2016
Copy of the international search report
Search/Exam
Aug 4, 2016
Published international application - A1
Search/Exam