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The patent EP3708455 was granted to Crsc Research & Design Institute Group on Dec 28, 2022. The application was filed on May 10, 2018 under application number EP18875609A. 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 |
|---|---|---|---|
| SIEMENS MOBILITY | Sep 25, 2023 | SIEMENS PATENT ATTORNEYS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CN103178328 |
| INTERNATIONAL-SEARCH-REPORT | CN104052519 |
| INTERNATIONAL-SEARCH-REPORT | CN107933614 |
| INTERNATIONAL-SEARCH-REPORT | US2015198712 |
| OPPOSITION | US2015080041 |
| OPPOSITION | US2015198712 |
| SEARCH | US2014326835 |
| SEARCH | US2015080041 |
| SEARCH | US2015198712 |
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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Oct 9, 2025
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Means of redress
OPPO
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Jan 11, 2023
Dec 1, 2022
Decision to grant a European patent
Search/Exam
Nov 21, 2022
(Electronic) Receipt
Search/Exam
Nov 21, 2022
Filing of the translations of the claims
Search/Exam
Nov 21, 2022
French translation of claims
Search/Exam
Nov 21, 2022
German translation of the claims
Search/Exam
Nov 21, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 12, 2022
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Jul 12, 2022
Intention to grant (signatures)
Search/Exam
Jul 12, 2022
Text intended for grant (clean copy)
Search/Exam
Jul 12, 2022
Mar 4, 2022
(Electronic) Receipt
Search/Exam
Mar 4, 2022
Amended claims with annotations
Search/Exam
Mar 4, 2022
Amended description with annotations
Search/Exam
Mar 4, 2022
Claims
Search/Exam
Mar 4, 2022
Description
Search/Exam
Mar 4, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 4, 2022
Dec 13, 2021
Annex to the communication
Search/Exam
Dec 13, 2021
Communication from the Examining Division
Search/Exam
Dec 8, 2021
Examination started
Search/Exam
Sep 21, 2021
(Electronic) Receipt
Search/Exam
Sep 21, 2021
Sep 21, 2021
Amended claims with annotations
Search/Exam
Sep 21, 2021
Amendments received before examination
Search/Exam
Sep 21, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 18, 2021
Mar 1, 2021
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European search opinion
Search/Exam
Mar 1, 2021
Information on Search Strategy
Search/Exam
Mar 1, 2021
Supplementary European search report
Search/Exam
Nov 26, 2020
Nov 26, 2020
Information on Search Strategy
Search/Exam
Nov 26, 2020
Partial European search report
Search/Exam
Nov 26, 2020
Nov 16, 2020
Search started
Search/Exam
Aug 19, 2020
Notification of forthcoming publication
Search/Exam
Jul 31, 2020
(Electronic) Receipt
Search/Exam
Jul 31, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 31, 2020
Reply to Written Opinion prepared by the EPO
Search/Exam
Jun 23, 2020
Jun 16, 2020
Communication to designated inventor
Search/Exam
Jun 16, 2020
Communication to designated inventor
Search/Exam
Jun 16, 2020
Communication to designated inventor
Search/Exam
Jun 16, 2020
Communication to designated inventor
Search/Exam
Jun 16, 2020
Communication to designated inventor
Search/Exam
Jun 16, 2020
Communication to designated inventor
Search/Exam
Jun 16, 2020
Communication to designated inventor
Search/Exam
Jun 16, 2020
Communication to designated inventor
Search/Exam
Jun 16, 2020
Communication to designated inventor
Search/Exam
Jun 16, 2020
Communication to designated inventor
Search/Exam
Jun 16, 2020
Communication to designated inventor
Search/Exam
Jun 16, 2020
Communication to designated inventor
Search/Exam
Jun 5, 2020
(Electronic) Receipt
Search/Exam
Jun 5, 2020
Abstract
Search/Exam
Jun 5, 2020
Claims
Search/Exam
Jun 5, 2020
Description
Search/Exam
Jun 5, 2020
Drawings
Search/Exam
Jun 5, 2020
Request for entry into the European phase
Search/Exam
May 25, 2020
May 25, 2020
Apr 22, 2020
Notification of the recording of a change
Search/Exam
Mar 20, 2020
Information on entry into European phase
Search/Exam
Nov 26, 2019
Notification of the recording of a change
Search/Exam
Jun 14, 2019
May 16, 2019
Copy of the international search report
Search/Exam
May 16, 2019
May 16, 2019
International publication pamphlet
Search/Exam