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The patent EP3540530 was granted to Siemens on Oct 19, 2022. The application was filed on Mar 15, 2018 under application number EP18161986A. 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 |
|---|---|---|---|
| KSB | Jul 19, 2023 | BALS & VOGEL PATENTANWALTE PARTGMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | CH710433 |
| OPPOSITION | DE102007035274 |
| OPPOSITION | EP0411873 |
| OPPOSITION | US2007129917 |
| OPPOSITION | US2011131017 |
| OPPOSITION | US2013204587 |
| OPPOSITION | US2016247129 |
| OPPOSITION | US8055358 |
| OPPOSITION | WO2007067645 |
| SEARCH | GB2393528 |
| SEARCH | US2007129917 |
| SEARCH | US2011131017 |
| SEARCH | US2013204587 |
| SEARCH | WO2007067645 |
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 4, 2025
Jul 30, 2025
(Electronic) Receipt
Appeal
Jul 30, 2025
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(Electronic) Receipt
Appeal
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Appeal
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Appeal
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Appeal
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Reply to appeal
Appeal
Feb 3, 2025
Jan 29, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Dec 2, 2024
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Notice of appeal
Appeal
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Decision to grant a European patent
Search/Exam
Sep 8, 2022
(Electronic) Receipt
Search/Exam
Sep 8, 2022
English translation of the claims
Search/Exam
Sep 8, 2022
French translation of claims
Search/Exam
Sep 8, 2022
Letter accompanying subsequently filed items
Search/Exam
Jun 20, 2022
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Intention to grant (signatures)
Search/Exam
Jun 20, 2022
Text intended for grant (clean copy)
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Jun 20, 2022
Sep 28, 2021
(Electronic) Receipt
Search/Exam
Sep 28, 2021
Amended claims with annotations
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Sep 28, 2021
Claims
Search/Exam
Sep 28, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 28, 2021
May 31, 2021
Annex to the communication
Search/Exam
May 31, 2021
Communication from the Examining Division
Search/Exam
May 25, 2021
Examination started
Search/Exam
Sep 25, 2019
(Electronic) Receipt
Search/Exam
Sep 25, 2019
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Amended claims with annotations
Search/Exam
Sep 25, 2019
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Amended description with annotations
Search/Exam
Sep 25, 2019
Amendments received before examination
Search/Exam
Sep 25, 2019
Letter accompanying subsequently filed items
Search/Exam
Sep 23, 2019
Aug 21, 2019
Notification of forthcoming publication
Search/Exam
Oct 2, 2018
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European search opinion
Search/Exam
Oct 2, 2018
European search report
Search/Exam
Oct 2, 2018
Information on Search Strategy
Search/Exam
May 29, 2018
Communication to designated inventor
Search/Exam
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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May 29, 2018
Communication to designated inventor
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Mar 29, 2018
(Electronic) Receipt
Search/Exam
Mar 29, 2018
Drawings
Search/Exam
Mar 29, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 15, 2018
Abstract
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Mar 15, 2018
Mar 15, 2018
Claims
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Mar 15, 2018
Description
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Mar 15, 2018
Designation of inventor
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Mar 15, 2018
Drawings
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Mar 15, 2018
Request for grant of a European patent
Search/Exam