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The patent EP3458122 was granted to Fresenius Medical Care Deutschland on May 3, 2023. The application was filed on May 19, 2017 under application number EP17723719A. 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 |
|---|---|---|---|
| B BRAUN MELSUNGEN | Feb 1, 2024 | WINTER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102005024621 |
| DESCRIPTION | EP2001670 |
| DESCRIPTION | US4417753 |
| DESCRIPTION | WO2010121819 |
| INTERNATIONAL-SEARCH-REPORT | JP2005218649 |
| INTERNATIONAL-SEARCH-REPORT | JP2006130144 |
| INTERNATIONAL-SEARCH-REPORT | US2004059063 |
| INTERNATIONAL-SEARCH-REPORT | US2009299260 |
| INTERNATIONAL-SEARCH-REPORT | US2010274168 |
| INTERNATIONAL-SEARCH-REPORT | WO8300699 |
| OPPOSITION | EP1857252 |
| OPPOSITION | EP2422837 |
| OPPOSITION | WO03099354 |
| OPPOSITION | WO2015156299 |
| OPPOSITION | WO9521648 |
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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Dec 1, 2025
Nov 26, 2025
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(Electronic) Receipt
Appeal
Nov 21, 2025
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Notice of appeal
Appeal
Sep 23, 2025
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Means of redress
OPPO
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May 16, 2023
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Decision to grant a European patent
Search/Exam
Mar 24, 2023
(Electronic) Receipt
Search/Exam
Mar 24, 2023
Filing of the translations of the claims
Search/Exam
Mar 24, 2023
French translation of claims
Search/Exam
Mar 24, 2023
German translation of the claims
Search/Exam
Nov 16, 2022
Intention to grant (signatures)
Search/Exam
Nov 15, 2022
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Text intended for grant (clean copy)
Search/Exam
Nov 15, 2022
Feb 17, 2021
(Electronic) Receipt
Search/Exam
Feb 17, 2021
Amended claims with annotations
Search/Exam
Feb 17, 2021
Claims
Search/Exam
Feb 17, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 17, 2021
Nov 30, 2020
Nov 24, 2020
(Electronic) Receipt
Search/Exam
Nov 24, 2020
Aug 11, 2020
Annex to the communication
Search/Exam
Aug 11, 2020
Communication from the Examining Division
Search/Exam
Aug 5, 2020
Examination started
Search/Exam
Jul 11, 2019
(Electronic) Receipt
Search/Exam
Jul 11, 2019
Jul 11, 2019
Amended claims with annotations
Search/Exam
Jul 11, 2019
Amendments received before examination
Search/Exam
Jul 11, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 27, 2019
Jan 11, 2019
Jan 5, 2019
Priority search results copy provided by EPO
Search/Exam
Jan 3, 2019
Communication to designated inventor
Search/Exam
Jan 3, 2019
Communication to designated inventor
Search/Exam
Jan 3, 2019
Communication to designated inventor
Search/Exam
Jan 3, 2019
Communication to designated inventor
Search/Exam
Dec 17, 2018
(Electronic) Receipt
Search/Exam
Dec 17, 2018
Request for entry into the European phase
Search/Exam
Dec 6, 2018
Sep 28, 2018
Information on entry into European phase
Search/Exam
Dec 12, 2017
Nov 23, 2017
Copy of the international search report
Search/Exam
Nov 23, 2017
Published international application - A1
Search/Exam
Aug 18, 2017
Aug 18, 2017
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Jul 18, 2017
(Electronic) Receipt
PCTRO
Jul 18, 2017
Jul 18, 2017
Jul 18, 2017
May 29, 2017
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May 19, 2017
(Electronic) Receipt
PCTRO
May 19, 2017
Abstract
PCTRO
May 19, 2017
Claims
PCTRO
May 19, 2017
Description
PCTRO
May 19, 2017
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Drawings
PCTRO
May 19, 2017
May 19, 2017