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The patent EP2665436 was granted to Fresenius Medical Care Deutschland on Sep 21, 2022. The application was filed on Jan 16, 2012 under application number EP12701314A. 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 |
|---|---|---|---|
| GAMBRO LUNDIA | Jun 21, 2023 | PONZELLINI | ADMISSIBLE |
| B BRAUN MELSUNGEN | Jun 20, 2023 | WINTER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102008026915 |
| EXAMINATION | WO2009081241 |
| INTERNATIONAL-SEARCH-REPORT | DE102009024606 |
| INTERNATIONAL-SEARCH-REPORT | WO2009135835 |
| OPPOSITION | DE102008026916 |
| OPPOSITION | DE20113789U |
| OPPOSITION | EP1132102 |
| OPPOSITION | JP2008310716 |
| OPPOSITION | US5769811 |
| OPPOSITION | WO2008129344 |
| OPPOSITION | WO8002376 |
| OTHER | WO2009081241 |
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 21, 2025
Nov 21, 2025
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Oct 14, 2025
(Electronic) Receipt
Appeal
Oct 14, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Claims
Appeal
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Reply to appeal
Appeal
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Feb 28, 2025
(Electronic) Receipt
Appeal
Feb 28, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
Dec 20, 2024
Notice of appeal
Appeal
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Aug 25, 2022
Decision to grant a European patent
Search/Exam
Aug 11, 2022
(Electronic) Receipt
Search/Exam
Aug 11, 2022
Filing of the translations of the claims
Search/Exam
Aug 11, 2022
Letter accompanying subsequently filed items
Search/Exam
Apr 13, 2022
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Intention to grant (signatures)
Search/Exam
Apr 13, 2022
Text intended for grant (clean copy)
Search/Exam
Apr 13, 2022
Mar 14, 2022
(Electronic) Receipt
Search/Exam
Mar 14, 2022
Amended claims with annotations
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Mar 14, 2022
Amended description with annotations
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Mar 14, 2022
Claims
Search/Exam
Mar 14, 2022
Description
Search/Exam
Mar 14, 2022
English translation of the claims
Search/Exam
Mar 14, 2022
French translation of claims
Search/Exam
Mar 14, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 14, 2022
Nov 12, 2021
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Nov 12, 2021
Intention to grant (signatures)
Search/Exam
Nov 12, 2021
Text intended for grant (clean copy)
Search/Exam
Nov 12, 2021
Oct 15, 2021
Oct 13, 2021
Oct 8, 2021
(Electronic) Receipt
Search/Exam
Oct 8, 2021
Amended claims with annotations
Search/Exam
Oct 8, 2021
Amended description with annotations
Search/Exam
Oct 8, 2021
Claims
Search/Exam
Oct 8, 2021
Description
Search/Exam
Oct 8, 2021
Letter accompanying subsequently filed items
Search/Exam
Oct 8, 2021
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Sep 29, 2021
(Electronic) Receipt
Search/Exam
Sep 29, 2021
Amended claims with annotations
Search/Exam
Sep 29, 2021
Claims
Search/Exam
Sep 29, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 29, 2021
May 21, 2021
Advice of delivery
Search/Exam
May 17, 2021
Acknowledgement of a document
Search/Exam
May 17, 2021
Annex to the communication
Search/Exam
May 17, 2021
Summons to attend oral proceedings
Search/Exam
Mar 17, 2021
(Electronic) Receipt
Search/Exam
Mar 17, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 17, 2021
Nov 18, 2020
Annex to the communication
Search/Exam
Nov 18, 2020
Communication from the Examining Division
Search/Exam
May 23, 2017
(Electronic) Receipt
Search/Exam
May 23, 2017
Amended claims with annotations
Search/Exam
May 23, 2017
Claims
Search/Exam
May 23, 2017
Letter accompanying subsequently filed items
Search/Exam
May 23, 2017
Jan 16, 2017
Annex to the communication
Search/Exam
Jan 16, 2017
Communication from the Examining Division
Search/Exam
Dec 22, 2016
Examination started
Search/Exam
Aug 1, 2016
Jan 22, 2015
Jan 14, 2015
Observations by third parties
Search/Exam
Jan 14, 2015
Patent document filed by a Third party
Search/Exam
Sep 18, 2014
Submission concerning representation
Search/Exam
Mar 27, 2014
(Electronic) Receipt
Search/Exam
Mar 27, 2014
Mar 27, 2014
Amended claims with annotations
Search/Exam
Mar 27, 2014
Mar 27, 2014
Amended description with annotations
Search/Exam
Mar 27, 2014
Amendments received before examination
Search/Exam
Mar 27, 2014
Letter accompanying subsequently filed items
Search/Exam
Feb 5, 2014
Jan 31, 2014
Oct 30, 2013
Sep 17, 2013
Sep 13, 2013
Communication to designated inventor
Search/Exam
Sep 13, 2013
Communication to designated inventor
Search/Exam
Aug 14, 2013
(Electronic) Receipt
Search/Exam
Aug 14, 2013
Priority search results
Search/Exam
Aug 14, 2013
Request for entry into the European phase
Search/Exam
Aug 7, 2013
Jun 3, 2013
Information on entry into European phase
Search/Exam
Aug 15, 2012
Aug 15, 2012
Jul 26, 2012
Copy of the international search report
Search/Exam
Jul 26, 2012
Copy of the international search report
Search/Exam
Jul 26, 2012
Published international application - A1
Search/Exam
Jul 2, 2012
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Jan 16, 2012
Abstract
PCTRO
Jan 16, 2012
Claims
PCTRO
Jan 16, 2012
Description
PCTRO
Jan 16, 2012
Drawings
PCTRO