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The patent EP2746128 was granted to Siemens on Oct 8, 2025. The application was filed on Dec 5, 2013 under application number EP13195840A. 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 |
|---|---|---|---|
| BOMBARDIER TRANSPORTATION | Dec 10, 2020 | ZIMMERMANN & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102007022198 |
| OPPOSITION | DE102008048083 |
| OPPOSITION | DE19916287 |
| OPPOSITION | WO2011124523 |
| SEARCH | DE102007022198 |
| SEARCH | DE19501805 |
| SEARCH | DE2142714 |
| SEARCH | EP1057705 |
| SEARCH | JP2011235732 |
| SEARCH | JPS5929355U |
| SEARCH | US2010089283 |
| SEARCH | WO9962752 |
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 11, 2025
Sep 11, 2025
Sep 4, 2025
Sep 1, 2025
Sep 1, 2025
Sep 1, 2025
Sep 1, 2025
Aug 20, 2025
Annexes in respect of a client data request
Search/Exam
Aug 20, 2025
Annexes in respect of a client data request
Search/Exam
Aug 20, 2025
Letter accompanying subsequently filed items
Search/Exam
Aug 20, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Jun 10, 2025
May 20, 2025
May 20, 2025
May 19, 2025
Refund of fees
Appeal
May 15, 2025
May 15, 2025
May 15, 2025
Mar 14, 2025
Mar 11, 2025
(Electronic) Receipt
Appeal
Mar 11, 2025
Mar 11, 2025
Mar 11, 2025
Mar 11, 2025
Mar 4, 2025
(Electronic) Receipt
Appeal
Mar 4, 2025
Mar 4, 2025
Jul 2, 2024
Jul 2, 2024
Jul 2, 2024
Jun 27, 2024
Feb 22, 2024
Sep 21, 2023
Sep 15, 2023
(Electronic) Receipt
Appeal
Sep 15, 2023
Sep 15, 2023
Jun 2, 2023
May 30, 2023
(Electronic) Receipt
Appeal
May 30, 2023
May 30, 2023
Reply to appeal
Appeal
Mar 9, 2023
Mar 9, 2023
Feb 27, 2023
(Electronic) Receipt
Appeal
Feb 27, 2023
Feb 27, 2023
Feb 1, 2023
Jan 26, 2023
Jan 26, 2023
Jan 12, 2023
Jan 12, 2023
Jan 5, 2023
(Electronic) Receipt
Appeal
Jan 5, 2023
Jan 5, 2023
Notice of appeal
Appeal
Nov 22, 2022
Nov 21, 2022
Nov 16, 2022
Nov 16, 2022
Nov 16, 2022
Nov 16, 2022
Nov 16, 2022
Nov 16, 2022
Nov 16, 2022
Means of redress
OPPO
Nov 16, 2022
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Dec 10, 2020
Mar 23, 2020
Feb 13, 2020
Decision to grant a European patent
Search/Exam
Jan 29, 2020
(Electronic) Receipt
Search/Exam
Jan 29, 2020
English translation of the claims
Search/Exam
Jan 29, 2020
Filing of the translations of the claims
Search/Exam
Jan 29, 2020
French translation of claims
Search/Exam
Oct 23, 2019
Oct 23, 2019
Oct 23, 2019
Intention to grant (signatures)
Search/Exam
Oct 23, 2019
Text intended for grant (clean copy)
Search/Exam
Oct 23, 2019
Oct 1, 2018
Sep 17, 2018
Annexes in respect of a client data request
Search/Exam
Sep 17, 2018
Aug 23, 2018
Annexes in respect of a client data request
Search/Exam
Aug 23, 2018
Jul 31, 2018
(Electronic) Receipt
Search/Exam
Jul 31, 2018
Amended claims with annotations
Search/Exam
Jul 31, 2018
Amended claims with annotations
Search/Exam
Jul 31, 2018
Amended description with annotations
Search/Exam
Jul 31, 2018
Amended description with annotations
Search/Exam
Jul 31, 2018
Claims
Search/Exam
Jul 31, 2018
Claims
Search/Exam
Jul 31, 2018
Description
Search/Exam
Jul 31, 2018
Description
Search/Exam
Jul 31, 2018
Letter accompanying subsequently filed items
Search/Exam
Jul 31, 2018
Mar 29, 2018
Annex to the communication
Search/Exam
Mar 29, 2018
Communication from the Examining Division
Search/Exam
Mar 19, 2018
Examination started
Search/Exam
Jan 3, 2018
Jul 31, 2017
Jul 24, 2017
Dec 19, 2014
(Electronic) Receipt
Search/Exam
Dec 19, 2014
Dec 19, 2014
Amended claims with annotations
Search/Exam
Dec 19, 2014
Dec 19, 2014
Amended description with annotations
Search/Exam
Dec 19, 2014
Amendments received before examination
Search/Exam
Dec 19, 2014
Letter accompanying subsequently filed items
Search/Exam
Jun 30, 2014
May 28, 2014
Notification of forthcoming publication
Search/Exam
Mar 27, 2014
Mar 27, 2014
European search opinion
Search/Exam
Mar 27, 2014
European search report
Search/Exam
Mar 18, 2014
Search started
Search/Exam
Feb 11, 2014
Communication to designated inventor
Search/Exam
Feb 11, 2014
Communication to designated inventor
Search/Exam
Dec 16, 2013
Letter concerning the priority
Search/Exam
Dec 16, 2013
Priority document
Search/Exam
Dec 5, 2013
Abstract
Search/Exam
Dec 5, 2013
Dec 5, 2013
Claims
Search/Exam
Dec 5, 2013
Description
Search/Exam
Dec 5, 2013
Designation of inventor
Search/Exam
Dec 5, 2013
Designation of inventor
Search/Exam
Dec 5, 2013
Drawings
Search/Exam
Dec 5, 2013
Priority search results
Search/Exam
Dec 5, 2013
Request for grant of a European patent
Search/Exam