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The patent EP1671695 was granted to Fresenius Medical Care Deutschland on Mar 17, 2021. The application was filed on Feb 16, 2001 under application number EP06002619A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| NIPRO MEDICAL GERMANY | Aug 9, 2019 | BETTEN & RESCH | - |
| B BRAUN AVITUM | Oct 1, 2014 | WINTER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OTHER | DE2851687 |
| OTHER | JPS6245709 |
| SEARCH | DE2842958 |
| SEARCH | DE2851687 |
| SEARCH | EP0168783 |
| SEARCH | JPH02258035 |
| SEARCH | JPH0810322 |
| SEARCH | JPH09266947 |
| SEARCH | JPH1190187 |
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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Feb 18, 2021
Feb 18, 2021
Feb 12, 2021
Feb 5, 2021
Feb 5, 2021
Feb 5, 2021
Feb 5, 2021
Nov 27, 2020
Nov 27, 2020
Nov 27, 2020
Nov 20, 2020
Nov 10, 2020
Refund of fees
Appeal
Oct 28, 2020
Refund of fees
Appeal
Oct 22, 2020
Oct 22, 2020
Oct 22, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 16, 2020
Oct 6, 2020
Oct 6, 2020
Oct 1, 2020
(Electronic) Receipt
Appeal
Oct 1, 2020
Oct 1, 2020
Sep 23, 2020
Sep 23, 2020
Sep 17, 2020
(Electronic) Receipt
Appeal
Sep 17, 2020
Sep 17, 2020
Sep 8, 2020
Sep 8, 2020
Sep 8, 2020
Sep 8, 2020
Sep 3, 2020
(Electronic) Receipt
Appeal
Sep 3, 2020
Sep 3, 2020
Sep 2, 2020
(Electronic) Receipt
Appeal
Sep 2, 2020
Sep 2, 2020
Aug 24, 2020
Aug 24, 2020
Aug 24, 2020
Aug 18, 2020
Aug 18, 2020
Aug 18, 2020
Aug 14, 2020
(Electronic) Receipt
Appeal
Aug 14, 2020
Aug 14, 2020
Aug 14, 2020
Aug 14, 2020
Aug 13, 2020
Aug 13, 2020
Aug 11, 2020
(Electronic) Receipt
Appeal
Aug 11, 2020
Aug 11, 2020
Aug 7, 2020
(Electronic) Receipt
Appeal
Aug 7, 2020
Aug 7, 2020
Aug 7, 2020
Aug 7, 2020
Aug 7, 2020
Claims
Appeal
Aug 7, 2020
Claims
Appeal
Aug 7, 2020
Claims
Appeal
Aug 7, 2020
Aug 7, 2020
May 27, 2020
May 27, 2020
May 20, 2020
(Electronic) Receipt
Appeal
May 20, 2020
May 20, 2020
May 20, 2020
May 20, 2020
May 20, 2020
May 20, 2020
May 20, 2020
May 20, 2020
May 20, 2020
Notice of opposition
Appeal
May 11, 2020
May 11, 2020
May 11, 2020
Nov 28, 2019
Advice of delivery
Appeal
Nov 28, 2019
Advice of delivery
Appeal
Nov 27, 2019
Advice of delivery
Appeal
Nov 27, 2019
Advice of delivery
Appeal
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Nov 21, 2019
Nov 7, 2019
Nov 7, 2019
Aug 9, 2019
(Electronic) Receipt
Appeal
Aug 9, 2019
(Electronic) Receipt
Appeal
Aug 9, 2019
Aug 9, 2019
Aug 9, 2019
Aug 9, 2019
Aug 9, 2019
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Aug 9, 2019
Aug 9, 2019
Aug 9, 2019
Aug 9, 2019
Aug 9, 2019
Notice of appeal
Appeal
Aug 9, 2019
Notice of opposition
Appeal
Apr 11, 2018
Nov 27, 2017
Nov 22, 2017
(Electronic) Receipt
Appeal
Nov 22, 2017
Nov 22, 2017
Reply to appeal
Appeal
Jul 21, 2017
Jul 14, 2017
May 30, 2017
May 30, 2017
May 19, 2017
Processing of an appeal
Appeal
May 16, 2017
May 16, 2017
Notice of appeal
Appeal
May 16, 2017
Mar 16, 2017
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Means of redress
OPPO
Mar 6, 2017
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May 2, 2016
Jan 26, 2016
Jan 15, 2016
Submission concerning representation
Search/Exam
Oct 7, 2015
Sep 28, 2015
Jul 29, 2015
Jul 29, 2015
Jul 23, 2015
Jun 17, 2015
May 13, 2015
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Oct 1, 2014
Jan 3, 2014
Dec 5, 2013
Decision to grant a European patent
Search/Exam
Nov 18, 2013
English translation of the claims
Search/Exam
Nov 18, 2013
Filing of the translations of the claims
Search/Exam
Nov 18, 2013
French translation of claims
Search/Exam
Nov 18, 2013
Payment of fees and costs
Search/Exam
Jul 8, 2013
Jul 8, 2013
Jul 8, 2013
Intention to grant (signatures)
Search/Exam
Jul 8, 2013
Text intended for grant
Search/Exam
Jun 11, 2013
Annex to a communication
Search/Exam
Jun 11, 2013
Annex to the communication
Search/Exam
Jun 11, 2013
Jun 11, 2013
Jun 11, 2013
Jun 11, 2013
Apr 9, 2013
Annex to the communication
Search/Exam
Apr 9, 2013
Consultation by telephone/in person
Search/Exam
Apr 9, 2013
Apr 9, 2013
Apr 4, 2013
Mar 25, 2013
Amended claims with annotations
Search/Exam
Mar 25, 2013
Amended claims with annotations
Search/Exam
Mar 25, 2013
Claims
Search/Exam
Mar 25, 2013
Claims
Search/Exam
Mar 25, 2013
Letter dealing with oral proceedings
Search/Exam
Dec 18, 2012
Advice of delivery
Search/Exam
Dec 12, 2012
Advice of delivery
Search/Exam
Dec 7, 2012
Acknowledgement of a document
Search/Exam
Dec 7, 2012
Annex to the communication
Search/Exam
Dec 7, 2012
Summons to attend oral proceedings
Search/Exam
Jan 10, 2012
Dec 22, 2011
Observations by third parties
Search/Exam
Dec 22, 2011
Dec 22, 2011
Nov 28, 2011
Claims
Search/Exam
Nov 28, 2011
Sep 26, 2011
Sep 19, 2011
May 20, 2011
Annex to the communication
Search/Exam
May 20, 2011
Communication from the Examining Division
Search/Exam
Jul 22, 2009
Claims
Search/Exam
Jul 22, 2009
Jun 2, 2009
May 18, 2009
Jan 12, 2009
Annex to the communication
Search/Exam
Jan 12, 2009
Communication from the Examining Division
Search/Exam
Apr 30, 2007
Claims
Search/Exam
Apr 30, 2007
Apr 10, 2007
Mar 12, 2007
Dec 18, 2006
Dec 7, 2006
Sep 1, 2006
Annex to the communication
Search/Exam
Sep 1, 2006
Communication from the Examining Division
Search/Exam
Aug 22, 2006
General enquiry
Search/Exam
Aug 14, 2006
Annex to the communication
Search/Exam
Aug 14, 2006
Communication from the Examining Division
Search/Exam
Jun 26, 2006
Jun 9, 2006
Letter concerning the inventor
Search/Exam
May 24, 2006
Notification of forthcoming publication
Search/Exam
May 19, 2006
May 4, 2006
May 4, 2006
European search report
Search/Exam
Apr 13, 2006
Letter which had not been notified
Search/Exam
Feb 8, 2006
Abstract
Search/Exam
Feb 8, 2006
Claims
Search/Exam
Feb 8, 2006
Description
Search/Exam
Feb 8, 2006
Designation of inventor
Search/Exam
Feb 8, 2006
Drawings
Search/Exam
Feb 8, 2006
Aug 6, 2003
Translation of priority document
Search/Exam
Aug 1, 2003
Translation of priority document
Search/Exam
Aug 1, 2003
Translation of priority document
Search/Exam
Aug 29, 2001
Priority document
Search/Exam