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The patent EP3623243 was granted to Alstom on Dec 13, 2023. The application was filed on Sep 12, 2019 under application number EP19196936A. 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 |
|---|---|---|---|
| SIEMENS MOBILITY | Oct 20, 2021 | SIEMENS PATENT ATTORNEYS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | DE102005012715 |
| OPPOSITION | DE4338098 |
| OPPOSITION | EP0134704 |
| OPPOSITION | EP0876936 |
| OPPOSITION | US2451058 |
| SEARCH | DE102009025553 |
| SEARCH | EP3205552 |
| SEARCH | WO2008009443 |
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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Sep 8, 2023
Aug 31, 2023
Aug 31, 2023
Aug 25, 2023
Annexes in respect of a client data request
Search/Exam
Aug 25, 2023
Annexes in respect of a client data request
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Aug 25, 2023
Authorisation
Search/Exam
Aug 25, 2023
Authorisation
Search/Exam
Aug 25, 2023
Letter accompanying subsequently filed items
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Aug 25, 2023
Letter concerning fees and payments
Search/Exam
Aug 25, 2023
Aug 25, 2023
Aug 21, 2023
Aug 21, 2023
Annex
OPPO
Aug 21, 2023
Aug 21, 2023
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May 22, 2023
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May 16, 2023
Refund of fees
Appeal
May 12, 2023
May 12, 2023
May 11, 2023
May 4, 2023
(Electronic) Receipt
Appeal
May 4, 2023
May 4, 2023
May 4, 2023
Withdrawal of an appeal
Appeal
Mar 30, 2023
Mar 30, 2023
Mar 23, 2023
(Electronic) Receipt
Appeal
Mar 23, 2023
Mar 23, 2023
Notice of appeal
Appeal
Feb 15, 2023
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Means of redress
OPPO
Jan 18, 2023
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Feb 1, 2021
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Decision to grant a European patent
Search/Exam
Dec 14, 2020
(Electronic) Receipt
Search/Exam
Dec 14, 2020
English translation of the claims
Search/Exam
Dec 14, 2020
Filing of the translations of the claims
Search/Exam
Dec 14, 2020
German translation of the claims
Search/Exam
Dec 14, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 1, 2020
Sep 1, 2020
Sep 1, 2020
Intention to grant (signatures)
Search/Exam
Sep 1, 2020
Text intended for grant (clean copy)
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Sep 1, 2020
Jul 31, 2020
Examination started
Search/Exam
Mar 23, 2020
Mar 2, 2020
(Electronic) Receipt
Search/Exam
Mar 2, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 28, 2020
Refund of fees
Search/Exam
Feb 19, 2020
Notification of forthcoming publication
Search/Exam
Feb 11, 2020
Feb 11, 2020
European search opinion
Search/Exam
Feb 11, 2020
European search report
Search/Exam
Feb 11, 2020
Information on Search Strategy
Search/Exam
Nov 6, 2019
Communication to designated inventor
Search/Exam
Sep 30, 2019
Letter concerning the priority
Search/Exam
Sep 30, 2019
Priority document
Search/Exam
Sep 17, 2019
Priority search results copy provided by EPO
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Sep 12, 2019
Abstract
Search/Exam
Sep 12, 2019
Sep 12, 2019
Claims
Search/Exam
Sep 12, 2019
Description
Search/Exam
Sep 12, 2019
Designation of inventor
Search/Exam
Sep 12, 2019
Drawings
Search/Exam
Sep 12, 2019
Priority search results
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Sep 12, 2019
Request for grant of a European patent
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