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The patent EP3646337 was granted to Gambro Lundia on Jun 28, 2023. The application was filed on Jun 21, 2018 under application number EP18737166A. 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 |
|---|---|---|---|
| FRESENIUS MEDICAL CARE | Mar 28, 2024 | BOBBERT & PARTNER PATENTANWALTE PARTMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1729836 |
| DESCRIPTION | US6585675 |
| DESCRIPTION | US7435235 |
| DESCRIPTION | WO2014095073 |
| INTERNATIONAL-SEARCH-REPORT | US2012273415 |
| INTERNATIONAL-SEARCH-REPORT | US2015343134 |
| OPPOSITION | DE102011018262 |
| OPPOSITION | DE19655225 |
| OPPOSITION | DE2101029 |
| OPPOSITION | DE4240681 |
| OPPOSITION | EP0240101 |
| OPPOSITION | EP0560368 |
| OPPOSITION | EP1666078 |
| OPPOSITION | EP1867353 |
| OPPOSITION | EP2140889 |
| OPPOSITION | EP3636296 |
| OPPOSITION | US2005203493 |
| OPPOSITION | US2006157408 |
| OPPOSITION | US2009084717 |
| OPPOSITION | US2010237011 |
| OPPOSITION | US2012273415 |
| OPPOSITION | US2015343134 |
| OPPOSITION | US6814864 |
| OPPOSITION | WO2014095073 |
| OPPOSITION | WO2014144909 |
| OPPOSITION | WO2016001217 |
| OPPOSITION | WO8304373 |
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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Nov 10, 2025
Nov 4, 2025
(Electronic) Receipt
Appeal
Nov 4, 2025
Claims
Appeal
Nov 4, 2025
Claims
Appeal
Nov 4, 2025
Claims
Appeal
Nov 4, 2025
Claims
Appeal
Nov 4, 2025
Claims
Appeal
Nov 4, 2025
Claims
Appeal
Nov 4, 2025
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Appeal
Nov 4, 2025
Claims
Appeal
Nov 4, 2025
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Appeal
Nov 4, 2025
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Appeal
Nov 4, 2025
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Appeal
Nov 4, 2025
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Appeal
Nov 4, 2025
Claims
Appeal
Nov 4, 2025
Claims
Appeal
Nov 4, 2025
Claims
Appeal
Nov 4, 2025
Claims
Appeal
Nov 4, 2025
Claims
Appeal
Nov 4, 2025
Claims
Appeal
Nov 4, 2025
Claims
Appeal
Nov 4, 2025
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Sep 1, 2025
(Electronic) Receipt
Appeal
Sep 1, 2025
Sep 1, 2025
Notice of appeal
Appeal
Jul 4, 2025
Jul 4, 2025
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Means of redress
OPPO
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Authorisation
OPPO
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Jul 11, 2023
Jun 2, 2023
Decision to grant a European patent
Search/Exam
May 23, 2023
(Electronic) Receipt
Search/Exam
May 23, 2023
Filing of the translations of the claims
Search/Exam
May 23, 2023
French translation of claims
Search/Exam
May 23, 2023
German translation of the claims
Search/Exam
Mar 15, 2023
Refund of fees
Search/Exam
Feb 9, 2023
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Intention to grant (signatures)
Search/Exam
Feb 9, 2023
Text intended for grant (clean copy)
Search/Exam
Feb 9, 2023
Oct 13, 2022
Examination started
Search/Exam
Aug 3, 2020
(Electronic) Receipt
Search/Exam
Aug 3, 2020
Aug 3, 2020
Amended claims with annotations
Search/Exam
Aug 3, 2020
Amendments received before examination
Search/Exam
Aug 3, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 8, 2020
Feb 6, 2020
Feb 4, 2020
Communication to designated inventor
Search/Exam
Feb 4, 2020
Communication to designated inventor
Search/Exam
Feb 4, 2020
Communication to designated inventor
Search/Exam
Feb 4, 2020
Communication to designated inventor
Search/Exam
Feb 4, 2020
Communication to designated inventor
Search/Exam
Feb 4, 2020
Communication to designated inventor
Search/Exam
Feb 4, 2020
Communication to designated inventor
Search/Exam
Feb 4, 2020
Communication to designated inventor
Search/Exam
Feb 4, 2020
Communication to designated inventor
Search/Exam
Feb 4, 2020
Communication to designated inventor
Search/Exam
Jan 14, 2020
(Electronic) Receipt
Search/Exam
Jan 14, 2020
Jan 14, 2020
Jan 14, 2020
Priority search results
Search/Exam
Jan 14, 2020
Request for entry into the European phase
Search/Exam
Nov 8, 2019
Information on entry into European phase
Search/Exam
Feb 5, 2019
Jan 3, 2019
Copy of the international search report
Search/Exam
Jan 3, 2019
Published international application - A1
Search/Exam
Oct 29, 2018
ISR: cited documents
PCTISA
Oct 26, 2018
Oct 26, 2018
Oct 26, 2018
Oct 19, 2018
(Electronic) Receipt
PCTRO
Oct 19, 2018
Oct 19, 2018
Oct 19, 2018
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Sep 4, 2018
Sep 4, 2018
Jul 20, 2018
Jul 16, 2018
Jun 21, 2018
(Electronic) Receipt
PCTRO
Jun 21, 2018
Abstract
PCTRO
Jun 21, 2018
Claims
PCTRO
Jun 21, 2018
Description
PCTRO
Jun 21, 2018
Jun 21, 2018
Drawings
PCTRO
Jun 21, 2018