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The patent EP3248853 was granted to Bombardier Transportation on Aug 13, 2025. The application was filed on May 24, 2017 under application number EP17172784A. 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 | Dec 16, 2021 | SIEMENS PATENT ATTORNEYS | ADMISSIBLE |
| STADLER RAIL | Dec 16, 2021 | HEPP WENGER RYFFEL | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | DE102012008186 |
| OPPOSITION | DE102013111420 |
| OPPOSITION | DE29507057U |
| OPPOSITION | DE29512446U |
| OPPOSITION | DE4314405 |
| OPPOSITION | DE4442368 |
| OPPOSITION | DE9315830U |
| OPPOSITION | DE9421209U |
| OPPOSITION | EP0616935 |
| OPPOSITION | EP0756980 |
| OPPOSITION | WO2016139167 |
| SEARCH | DE102013111420 |
| SEARCH | DE29507057U |
| SEARCH | DE29512446U |
| SEARCH | DE4314405 |
| SEARCH | DE4442368 |
| SEARCH | DE9421209U |
| SEARCH | WO2016139167 |
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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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Appeal
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Appeal
Feb 29, 2024
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Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
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Appeal
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Reply to appeal
Appeal
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(Electronic) Receipt
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Appeal
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Notice of appeal
Appeal
Aug 8, 2023
(Electronic) Receipt
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OPPO
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Authorisation
OPPO
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Apr 6, 2021
Feb 25, 2021
Decision to grant a European patent
Search/Exam
Feb 15, 2021
(Electronic) Receipt
Search/Exam
Feb 15, 2021
English translation of the claims
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Feb 15, 2021
Filing of the translations of the claims
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Feb 15, 2021
French translation of claims
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Feb 15, 2021
Letter accompanying subsequently filed items
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Oct 26, 2020
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Intention to grant (signatures)
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Oct 26, 2020
Text intended for grant (clean copy)
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Oct 26, 2020
Sep 15, 2020
(Electronic) Receipt
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Sep 15, 2020
Amended claims with annotations
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Sep 15, 2020
Claims
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Sep 15, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 15, 2020
Matter concerning the application
Search/Exam
Aug 24, 2020
(Electronic) Receipt
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Aug 24, 2020
Amended description with annotations
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Aug 24, 2020
Description
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Aug 24, 2020
Letter accompanying subsequently filed items
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Aug 24, 2020
May 6, 2020
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Text intended for grant (clean copy)
Search/Exam
May 6, 2020
Apr 9, 2020
Examination started
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Jan 16, 2020
May 29, 2018
(Electronic) Receipt
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May 29, 2018
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Amended claims with annotations
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May 29, 2018
Amendments received before examination
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May 29, 2018
Letter accompanying subsequently filed items
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May 29, 2018
Matter concerning the application
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Dec 4, 2017
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Notification of forthcoming publication
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Oct 27, 2017
Oct 27, 2017
European search opinion
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Oct 27, 2017
European search report
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Oct 27, 2017
Information on Search Strategy
Search/Exam
Oct 16, 2017
Search started
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Jul 21, 2017
Jul 17, 2017
CDS Clean up - amended applicant details
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Jul 17, 2017
Communication to designated inventor
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Jul 17, 2017
Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Jul 17, 2017
Communication to designated inventor
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Jul 14, 2017
Jul 11, 2017
Letter concerning the priority
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Jul 11, 2017
Priority document
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May 24, 2017
Abstract
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May 24, 2017
May 24, 2017
Claims
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May 24, 2017
Description
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May 24, 2017
Designation of inventor
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May 24, 2017
Drawings
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May 24, 2017
Priority search results
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May 24, 2017
Request for grant of a European patent
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