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The patent EP3205770 was granted to Heinrich Krug on Mar 8, 2023. The application was filed on Feb 14, 2017 under application number EP17000227A. 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 |
|---|---|---|---|
| VOESTALPINE RAILWAY SYSTEMS | May 20, 2019 | STOFFREGEN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE4447926 |
| OPPOSITION | DE102004048751 |
| OPPOSITION | DE1898454U |
| OPPOSITION | DE19825792 |
| OPPOSITION | DE19920858 |
| OPPOSITION | DE3904026 |
| OPPOSITION | DE4447926 |
| OPPOSITION | DE469939 |
| OPPOSITION | DE493589 |
| OPPOSITION | DE69107614T |
| OPPOSITION | DE835010 |
| OPPOSITION | EP0144034 |
| OPPOSITION | EP1052330 |
| OPPOSITION | EP2333153 |
| OPPOSITION | WO0065154 |
| SEARCH | DE552276 |
| SEARCH | EP0144034 |
| SEARCH | EP0515708 |
| SEARCH | WO0065154 |
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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Mar 14, 2023
Feb 9, 2023
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Nov 16, 2022
Refund of fees
Search/Exam
Nov 11, 2022
Nov 11, 2022
Nov 8, 2022
(Electronic) Receipt
Appeal
Nov 8, 2022
Nov 8, 2022
Nov 8, 2022
Withdrawal of an appeal
Appeal
Nov 8, 2021
Nov 3, 2021
(Electronic) Receipt
Appeal
Nov 3, 2021
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Reply to appeal
Appeal
Sep 13, 2021
Sep 8, 2021
(Electronic) Receipt
Appeal
Sep 8, 2021
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(Electronic) Receipt
Appeal
Jul 28, 2021
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Notice of appeal
Appeal
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Sep 3, 2018
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Decision to grant a European patent
Search/Exam
Jul 2, 2018
(Electronic) Receipt
Search/Exam
Jul 2, 2018
English translation of the claims
Search/Exam
Jul 2, 2018
Filing of the translations of the claims
Search/Exam
Jul 2, 2018
French translation of claims
Search/Exam
Jul 2, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 30, 2018
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Intention to grant (signatures)
Search/Exam
Apr 30, 2018
Text intended for grant (clean copy)
Search/Exam
Apr 30, 2018
Mar 21, 2018
Examination started
Search/Exam
Dec 7, 2017
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Nov 2, 2017
Brief communication with time limit
Search/Exam
Sep 25, 2017
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Aug 30, 2017
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Amended claims with annotations
Search/Exam
Aug 30, 2017
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Amended description with annotations
Search/Exam
Aug 30, 2017
Amendments received before examination
Search/Exam
Aug 29, 2017
Aug 29, 2017
Amended claims with annotations
Search/Exam
Aug 29, 2017
Aug 29, 2017
Amended description with annotations
Search/Exam
Aug 29, 2017
Amendments received before examination
Search/Exam
Aug 29, 2017
Payment of fees and costs
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Aug 29, 2017
Payment of fees and costs
Search/Exam
Aug 21, 2017
Aug 17, 2017
Aug 14, 2017
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Annexes in respect of a client data request
Search/Exam
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European search opinion
Search/Exam
Jul 19, 2017
European search report
Search/Exam
Jul 19, 2017
Information on Search Strategy
Search/Exam
Jul 19, 2017
Notification of forthcoming publication
Search/Exam
Jul 19, 2017
Jul 12, 2017
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Jun 1, 2017
Search started
Search/Exam
May 3, 2017
Communication to designated inventor
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May 3, 2017
Communication to designated inventor
Search/Exam
Mar 9, 2017
Payment of fees and costs
Search/Exam
Mar 9, 2017
Payment of fees and costs
Search/Exam
Feb 23, 2017
Letter concerning the priority
Search/Exam
Feb 23, 2017
Priority document
Search/Exam
Feb 23, 2017
Priority document
Search/Exam
Feb 14, 2017
Abstract
Search/Exam
Feb 14, 2017
Claims
Search/Exam
Feb 14, 2017
Description
Search/Exam
Feb 14, 2017
Designation of inventor
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Feb 14, 2017
Drawings
Search/Exam
Feb 14, 2017
Matter concerning the application
Search/Exam
Feb 14, 2017
Request for grant of a European patent
Search/Exam