The weekly litigation news digest is live. Subscribe now
The patent EP3209104 was granted to Alstom on Apr 6, 2022. The application was filed on Feb 15, 2017 under application number EP17156307A. 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 AUSTRIA | Dec 14, 2022 | 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 | DE102011118439 |
| DESCRIPTION | DE10308749 |
| EXAMINATION | CN204090339U |
| OPPOSITION | DE102008013850 |
| OPPOSITION | DE102012204300 |
| OPPOSITION | EP0943520 |
| OPPOSITION | US2004007347 |
| OPPOSITION | WO0115507 |
| SEARCH | FR2942442 |
| SEARCH | US2015216078 |
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
Get instant alerts for new documents
Nov 11, 2025
Nov 11, 2025
Nov 10, 2025
(Electronic) Receipt
Appeal
Nov 10, 2025
Nov 10, 2025
Reply to appeal
Appeal
Nov 6, 2025
(Electronic) Receipt
Appeal
Nov 6, 2025
Nov 6, 2025
Reply to appeal
Appeal
Jul 10, 2025
Jul 10, 2025
Jul 8, 2025
(Electronic) Receipt
Appeal
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jun 27, 2025
(Electronic) Receipt
Appeal
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
Jun 27, 2025
May 13, 2025
May 13, 2025
May 13, 2025
May 13, 2025
May 8, 2025
(Electronic) Receipt
Appeal
May 8, 2025
May 8, 2025
Notice of appeal
Appeal
May 7, 2025
(Electronic) Receipt
Appeal
May 7, 2025
May 7, 2025
Notice of appeal
Appeal
Mar 10, 2025
Mar 10, 2025
Mar 10, 2025
Mar 10, 2025
Mar 10, 2025
Mar 10, 2025
Mar 10, 2025
Mar 10, 2025
Mar 10, 2025
Means of redress
OPPO
Mar 10, 2025
Mar 10, 2025
Mar 10, 2025
Mar 10, 2025
Mar 10, 2025
Mar 10, 2025
Feb 19, 2025
Feb 4, 2025
Feb 3, 2025
Feb 3, 2025
Feb 3, 2025
Jan 31, 2025
Jan 30, 2025
Jan 30, 2025
Authorisation
OPPO
Jan 30, 2025
Jan 30, 2025
Dec 20, 2024
Dec 18, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 16, 2024
Dec 13, 2024
Dec 13, 2024
Dec 13, 2024
Dec 13, 2024
Dec 13, 2024
Dec 13, 2024
Dec 11, 2024
Dec 11, 2024
Dec 11, 2024
Jun 6, 2024
Jun 6, 2024
Jun 6, 2024
Jun 6, 2024
Jun 6, 2024
Jun 6, 2024
Jun 6, 2024
Aug 16, 2023
Aug 16, 2023
Aug 7, 2023
Aug 7, 2023
Aug 7, 2023
Aug 7, 2023
Aug 7, 2023
Aug 7, 2023
Aug 7, 2023
Aug 7, 2023
Aug 7, 2023
Jun 7, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
Mar 6, 2023
Feb 27, 2023
Feb 17, 2023
Letter accompanying subsequently filed items
Search/Exam
Feb 17, 2023
Jan 24, 2023
Jan 24, 2023
Dec 20, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Apr 21, 2022
Mar 11, 2022
Decision to grant a European patent
Search/Exam
Feb 24, 2022
(Electronic) Receipt
Search/Exam
Feb 24, 2022
English translation of the claims
Search/Exam
Feb 24, 2022
Filing of the translations of the claims
Search/Exam
Feb 24, 2022
French translation of claims
Search/Exam
Feb 24, 2022
Letter accompanying subsequently filed items
Search/Exam
Oct 28, 2021
Oct 28, 2021
Oct 28, 2021
Oct 28, 2021
Intention to grant (signatures)
Search/Exam
Oct 28, 2021
Text intended for grant (clean copy)
Search/Exam
Oct 28, 2021
Aug 30, 2021
(Electronic) Receipt
Search/Exam
Aug 30, 2021
Amended claims with annotations
Search/Exam
Aug 30, 2021
Amended description with annotations
Search/Exam
Aug 30, 2021
Claims
Search/Exam
Aug 30, 2021
Description
Search/Exam
Aug 30, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 30, 2021
Matter concerning the application
Search/Exam
Aug 27, 2020
(Electronic) Receipt
Search/Exam
Aug 27, 2020
Amended claims with annotations
Search/Exam
Aug 27, 2020
Claims
Search/Exam
Aug 27, 2020
Letter accompanying subsequently filed items
Search/Exam
Aug 27, 2020
Jun 19, 2020
Annex to a communication
Search/Exam
Jun 19, 2020
Annex to the communication
Search/Exam
Jun 19, 2020
Communication from the Examining Division
Search/Exam
Feb 16, 2018
(Electronic) Receipt
Search/Exam
Feb 16, 2018
Feb 16, 2018
Amended claims with annotations
Search/Exam
Feb 16, 2018
Amendments received before examination
Search/Exam
Feb 16, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 28, 2017
Jul 26, 2017
Jul 26, 2017
European search opinion
Search/Exam
Jul 26, 2017
European search report
Search/Exam
Jul 26, 2017
Information on Search Strategy
Search/Exam
Jul 26, 2017
Notification of forthcoming publication
Search/Exam
Jul 21, 2017
Jul 17, 2017
CDS Clean up - amended applicant details
Search/Exam
Jul 14, 2017
Apr 10, 2017
Communication to designated inventor
Search/Exam
Apr 10, 2017
Communication to designated inventor
Search/Exam
Apr 7, 2017
Letter concerning the priority
Search/Exam
Apr 7, 2017
Priority document
Search/Exam
Feb 15, 2017
Abstract
Search/Exam
Feb 15, 2017
Feb 15, 2017
Claims
Search/Exam
Feb 15, 2017
Description
Search/Exam
Feb 15, 2017
Designation of inventor
Search/Exam
Feb 15, 2017
Drawings
Search/Exam
Feb 15, 2017
Priority search results
Search/Exam
Feb 15, 2017
Request for grant of a European patent
Search/Exam