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The patent EP3121090 was granted to Alstom on Jul 2, 2025. The application was filed on Jul 21, 2016 under application number EP16180567A. 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 | May 26, 2020 | SIEMENS PATENT ATTORNEYS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0568043 |
| DESCRIPTION | EP1610995 |
| OPPOSITION | AT407138B |
| OPPOSITION | DE102009007674 |
| OPPOSITION | DE102009036722 |
| OPPOSITION | DE1036072 |
| OPPOSITION | DE1214098 |
| OPPOSITION | DE2830359 |
| OPPOSITION | EP0099597 |
| OPPOSITION | EP0100513 |
| OPPOSITION | EP0568043 |
| OPPOSITION | EP1610995 |
| OPPOSITION | EP2778011 |
| OPPOSITION | JPH0617867 |
| OPPOSITION | US2011315044 |
| OPPOSITION | US2014020595 |
| OPPOSITION | US2790650 |
| SEARCH | DE102009036722 |
| SEARCH | EP0100513 |
| SEARCH | EP0568043 |
| SEARCH | EP2778011 |
| SEARCH | JPH0617867 |
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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Jun 5, 2025
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Refund of fees
Appeal
Jan 17, 2025
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Dec 12, 2024
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(Electronic) Receipt
Appeal
Dec 11, 2024
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Dec 3, 2024
(Electronic) Receipt
Appeal
Dec 3, 2024
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Nov 20, 2024
Nov 15, 2024
(Electronic) Receipt
Appeal
Nov 15, 2024
Nov 15, 2024
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(Electronic) Receipt
Appeal
Nov 11, 2024
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May 12, 2023
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(Electronic) Receipt
Appeal
May 8, 2023
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Apr 19, 2023
Apr 19, 2023
Jan 26, 2023
Dec 20, 2022
Dec 15, 2022
(Electronic) Receipt
Appeal
Dec 15, 2022
Dec 15, 2022
Reply to appeal
Appeal
Dec 9, 2022
Dec 6, 2022
(Electronic) Receipt
Appeal
Dec 6, 2022
Dec 6, 2022
Reply to appeal
Appeal
Aug 9, 2022
Aug 9, 2022
Aug 3, 2022
(Electronic) Receipt
Appeal
Aug 3, 2022
Aug 3, 2022
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Claims
Appeal
Aug 3, 2022
Claims
Appeal
Aug 3, 2022
Claims
Appeal
Aug 3, 2022
Claims
Appeal
Aug 3, 2022
Claims
Appeal
Aug 3, 2022
Claims
Appeal
Aug 3, 2022
Aug 3, 2022
Jul 25, 2022
(Electronic) Receipt
Appeal
Jul 25, 2022
Jul 25, 2022
Jun 9, 2022
Jun 9, 2022
Jun 2, 2022
(Electronic) Receipt
Appeal
Jun 2, 2022
Jun 2, 2022
Notice of appeal
Appeal
Jun 1, 2022
Jun 1, 2022
May 24, 2022
(Electronic) Receipt
Appeal
May 24, 2022
May 24, 2022
Notice of appeal
Appeal
Apr 5, 2022
Apr 1, 2022
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Means of redress
OPPO
Mar 28, 2022
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Sep 16, 2019
Aug 8, 2019
Decision to grant a European patent
Search/Exam
Jul 23, 2019
(Electronic) Receipt
Search/Exam
Jul 23, 2019
English translation of the claims
Search/Exam
Jul 23, 2019
Filing of the translations of the claims
Search/Exam
Jul 23, 2019
French translation of claims
Search/Exam
Jul 23, 2019
Letter accompanying subsequently filed items
Search/Exam
Mar 21, 2019
Mar 21, 2019
Mar 21, 2019
Intention to grant (signatures)
Search/Exam
Mar 21, 2019
Text intended for grant (clean copy)
Search/Exam
Mar 21, 2019
Feb 13, 2019
(Electronic) Receipt
Search/Exam
Feb 13, 2019
Amended description with annotations
Search/Exam
Feb 13, 2019
Description
Search/Exam
Feb 13, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 13, 2019
Oct 23, 2018
Oct 23, 2018
Oct 23, 2018
Intention to grant (signatures)
Search/Exam
Oct 23, 2018
Text intended for grant (clean copy)
Search/Exam
Oct 23, 2018
Jul 27, 2018
Examination started
Search/Exam
Jul 21, 2017
Jul 19, 2017
(Electronic) Receipt
Search/Exam
Jul 19, 2017
Jul 19, 2017
Amended claims with annotations
Search/Exam
Jul 19, 2017
Amendments received before examination
Search/Exam
Jul 19, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 19, 2017
Letter concerning fees and payments
Search/Exam
Jul 17, 2017
CDS Clean up - amended applicant details
Search/Exam
Jul 14, 2017
Jan 30, 2017
Jan 4, 2017
Notification of forthcoming publication
Search/Exam
Dec 23, 2016
Dec 23, 2016
European search opinion
Search/Exam
Dec 23, 2016
European search report
Search/Exam
Dec 23, 2016
Information on Search Strategy
Search/Exam
Dec 14, 2016
Search started
Search/Exam
Oct 12, 2016
Letter concerning the priority
Search/Exam
Oct 12, 2016
Priority document
Search/Exam
Sep 13, 2016
Communication to designated inventor
Search/Exam
Jul 21, 2016
Abstract
Search/Exam
Jul 21, 2016
Jul 21, 2016
Claims
Search/Exam
Jul 21, 2016
Description
Search/Exam
Jul 21, 2016
Designation of inventor
Search/Exam
Jul 21, 2016
Drawings
Search/Exam
Jul 21, 2016
Priority search results
Search/Exam
Jul 21, 2016
Request for grant of a European patent
Search/Exam