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The patent EP3620346 was granted to Frauscher Sensortechnik on Jan 13, 2021. The application was originally filed on Sep 6, 2018 under application number EP18192994A. 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 |
|---|---|---|---|
| ALSTOM ZWUS SP Z OO | Oct 12, 2021 | PATENTANWALTE BRESSEL UND PARTNER MBB | ADMISSIBLE |
| VOESTALPINE SIGNALING POLAND SP Z OO | Oct 8, 2021 | KREKORA | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | DE3234651 |
| OPPOSITION | CN204548159U |
| OPPOSITION | CN204915722U |
| OPPOSITION | DE3234651 |
| OPPOSITION | EP1808531 |
| OPPOSITION | EP3567161 |
| OPPOSITION | US2005072252 |
| OPPOSITION | WO2007127132 |
| SEARCH | CN205022608U |
| SEARCH | EP1808531 |
| SEARCH | EP1960603 |
| SEARCH | US2005072252 |
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.
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Description
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Reply to appeal
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(Electronic) Receipt
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Authorisation
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Notice of appeal
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Jan 25, 2021
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Decision to grant a European patent
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(Electronic) Receipt
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Filing of the translations of the claims
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Dec 2, 2020
French translation of claims
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Dec 2, 2020
German translation of the claims
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Dec 2, 2020
Letter accompanying subsequently filed items
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Jul 24, 2020
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Intention to grant (signatures)
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Jul 24, 2020
Text intended for grant (clean copy)
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Notification of forthcoming publication
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Oct 11, 2019
(Electronic) Receipt
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Oct 11, 2019
Letter accompanying subsequently filed items
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Oct 11, 2019
Jun 28, 2019
Annex to the communication
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Jun 28, 2019
Communication from the Examining Division
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Jun 24, 2019
Examination started
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May 13, 2019
(Electronic) Receipt
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May 13, 2019
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Amended description with annotations
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May 13, 2019
Amendments received before examination
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May 13, 2019
Letter accompanying subsequently filed items
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European search opinion
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Feb 26, 2019
European search report
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Feb 26, 2019
Information on Search Strategy
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Feb 11, 2019
Search started
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Oct 30, 2018
Communication to designated inventor
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Oct 30, 2018
Communication to designated inventor
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Sep 19, 2018
Designation of inventor
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Sep 19, 2018
Letter concerning the inventor
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Sep 6, 2018
Abstract
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Sep 6, 2018
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Claims
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Sep 6, 2018
Description
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Sep 6, 2018
Drawings
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Sep 6, 2018
Request for grant of a European patent
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