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The patent EP3331736 was granted to Knorr Bremse Systeme FR Schienenfahrzeuge on Oct 23, 2024. The application was filed on Aug 2, 2016 under application number EP16750714A. 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 | Jan 3, 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 |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CN103309241 |
| INTERNATIONAL-SEARCH-REPORT | US2004163451 |
| INTERNATIONAL-SEARCH-REPORT | WO2014029581 |
| OPPOSITION | CN104374586 |
| OPPOSITION | DE102011113024 |
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
Apr 4, 2024
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Mar 27, 2024
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(Electronic) Receipt
Appeal
Mar 21, 2024
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(Electronic) Receipt
Appeal
Jul 7, 2022
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Appeal
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Appeal
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Appeal
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Appeal
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Appeal
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Appeal
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Appeal
Jul 7, 2022
Claims
Appeal
Jul 7, 2022
Claims
Appeal
Jul 7, 2022
Claims
Appeal
Jul 7, 2022
Claims
Appeal
Jul 7, 2022
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Reply to appeal
Appeal
Apr 25, 2022
Apr 20, 2022
(Electronic) Receipt
Appeal
Apr 20, 2022
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(Electronic) Receipt
Appeal
Feb 17, 2022
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Notice of appeal
Appeal
Dec 29, 2021
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OPPO
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Apr 15, 2019
Mar 7, 2019
Decision to grant a European patent
Search/Exam
Feb 15, 2019
English translation of the claims
Search/Exam
Feb 15, 2019
Filing of the translations of the claims
Search/Exam
Feb 15, 2019
French translation of claims
Search/Exam
Jan 21, 2019
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Intention to grant (signatures)
Search/Exam
Jan 21, 2019
Text intended for grant (clean copy)
Search/Exam
Jan 21, 2019
Dec 10, 2018
Examination started
Search/Exam
May 16, 2018
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Mar 14, 2018
Communication to designated inventor
Search/Exam
Mar 14, 2018
Communication to designated inventor
Search/Exam
Mar 14, 2018
Communication to designated inventor
Search/Exam
Mar 14, 2018
Communication to designated inventor
Search/Exam
Mar 14, 2018
Communication to designated inventor
Search/Exam
Mar 1, 2018
Jan 17, 2018
(Electronic) Receipt
Search/Exam
Jan 17, 2018
Priority search results
Search/Exam
Jan 17, 2018
Request for entry into the European phase
Search/Exam
Dec 20, 2017
Information on entry into European phase
Search/Exam
Mar 7, 2017
Feb 16, 2017
Copy of the international search report
Search/Exam
Feb 16, 2017
Copy of the international search report
Search/Exam
Feb 16, 2017
Published international application - A1
Search/Exam
Dec 2, 2016
Oct 27, 2016
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Aug 2, 2016
(Electronic) Receipt
PCTRO
Aug 2, 2016
Abstract
PCTRO
Aug 2, 2016
Claims
PCTRO
Aug 2, 2016
Description
PCTRO
Aug 2, 2016
Aug 2, 2016
Drawings
PCTRO