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The patent EP3760891 was granted to Knorr Bremse Systeme FR Schienenfahrzeuge on Mar 23, 2022. The application was filed on Jul 2, 2020 under application number EP20183739A. 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 |
|---|---|---|---|
| POLI COSTRUZIONE MATERIALI TRAZIONE | Dec 23, 2022 | CRISTINELLI | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102011102518 |
| OPPOSITION | DE102012015378 |
| OPPOSITION | DE1158095 |
| OPPOSITION | DE3839073 |
| OPPOSITION | EP0564942 |
| OPPOSITION | FR2101277 |
| OPPOSITION | US2015247541 |
| SEARCH | DE102012015378 |
| SEARCH | DE1158095 |
| SEARCH | DE3839073 |
| SEARCH | EP0564942 |
| SEARCH | FR2101277 |
| SEARCH | US2015247541 |
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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Aug 19, 2025
Aug 14, 2025
(Electronic) Receipt
Appeal
Aug 14, 2025
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Claims
Appeal
Aug 14, 2025
Claims
Appeal
Aug 14, 2025
Claims
Appeal
Aug 14, 2025
Claims
Appeal
Aug 14, 2025
Aug 14, 2025
Reply to appeal
Appeal
Apr 17, 2025
Apr 10, 2025
(Electronic) Receipt
Appeal
Apr 10, 2025
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Feb 18, 2025
Feb 18, 2025
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(Electronic) Receipt
Appeal
Feb 10, 2025
Notice of appeal
Appeal
Feb 10, 2025
Notice of appeal
Appeal
Dec 10, 2024
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Means of redress
OPPO
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Description
OPPO
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Description
OPPO
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OPPO
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Description
OPPO
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Apr 5, 2022
Feb 24, 2022
Decision to grant a European patent
Search/Exam
Feb 10, 2022
English translation of the claims
Search/Exam
Feb 10, 2022
Filing of the translations of the claims
Search/Exam
Feb 10, 2022
French translation of claims
Search/Exam
Oct 22, 2021
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Intention to grant (signatures)
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Oct 22, 2021
Text intended for grant (clean copy)
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Oct 22, 2021
Oct 6, 2021
Examination started
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Jun 16, 2021
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Amended claims with annotations
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Jun 16, 2021
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Amended description with annotations
Search/Exam
Jun 16, 2021
Amendments received before examination
Search/Exam
Jan 15, 2021
Dec 9, 2020
Notification of forthcoming publication
Search/Exam
Oct 14, 2020
Oct 14, 2020
European search opinion
Search/Exam
Oct 14, 2020
European search report
Search/Exam
Oct 14, 2020
Information on Search Strategy
Search/Exam
Oct 8, 2020
Modified abstract
Search/Exam
Oct 5, 2020
Search started
Search/Exam
Sep 25, 2020
Communication to designated inventor
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Sep 25, 2020
Communication to designated inventor
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Sep 25, 2020
Communication to designated inventor
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Aug 28, 2020
Letter concerning the priority
Search/Exam
Aug 28, 2020
Priority document
Search/Exam
Jul 2, 2020
Abstract
Search/Exam
Jul 2, 2020
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Claims
Search/Exam
Jul 2, 2020
Description
Search/Exam
Jul 2, 2020
Designation of inventor
Search/Exam
Jul 2, 2020
Drawings
Search/Exam
Jul 2, 2020
Priority search results
Search/Exam
Jul 2, 2020
Request for grant of a European patent
Search/Exam