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The patent EP2320971 was granted to Baxter on May 30, 2018. The application was filed on Jul 9, 2009 under application number EP09790207A. 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 | Feb 28, 2019 | BEHR | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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.
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Appeal
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Appeal
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Appeal
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Notice of appeal
Appeal
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Notice of appeal
Appeal
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Search/Exam
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Decision to grant a European patent
Search/Exam
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(Electronic) Receipt
Search/Exam
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French translation of claims
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German translation of the claims
Search/Exam
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Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
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(Electronic) Receipt
Search/Exam
Oct 17, 2017
Amended claims with annotations
Search/Exam
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Amended claims with annotations
Search/Exam
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Amended claims with annotations
Search/Exam
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Amended claims with annotations
Search/Exam
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Claims
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Claims
Search/Exam
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Search/Exam
Oct 17, 2017
Letter accompanying subsequently filed items
Search/Exam
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Annex to the communication
Search/Exam
Aug 28, 2017
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(Electronic) Receipt
Search/Exam
Aug 11, 2017
Letter accompanying subsequently filed items
Search/Exam
Aug 11, 2017
Letter dealing with oral proceedings
Search/Exam
Jun 26, 2017
Advice of delivery
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Advice of delivery
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Acknowledgement of a document
Search/Exam
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Annex to the communication
Search/Exam
Jun 8, 2017
Preparation for oral proceedings
Search/Exam
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Summons to attend oral proceedings
Search/Exam
Jan 29, 2015
(Electronic) Receipt
Search/Exam
Jan 29, 2015
Claims
Search/Exam
Jan 29, 2015
Letter accompanying subsequently filed items
Search/Exam
Jan 29, 2015
Dec 10, 2014
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(Electronic) Receipt
Search/Exam
Dec 5, 2014
Letter accompanying subsequently filed items
Search/Exam
Dec 5, 2014
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Annex to the communication
Search/Exam
Jul 30, 2014
Communication from the Examining Division
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Jul 24, 2014
Examination started
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Search/Exam
Aug 20, 2012
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Search/Exam
Aug 20, 2012
Claims
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Cover sheet for fax transmission
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Claims
Search/Exam
Apr 21, 2011
Cover sheet for fax transmission
Search/Exam
Apr 21, 2011
Description
Search/Exam
Apr 21, 2011
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Mar 16, 2011
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Request for entry into the European phase
Search/Exam
Feb 4, 2011
Annex
Search/Exam
Feb 4, 2011
Annex
Search/Exam
Feb 4, 2011
Matter concerning the application
Search/Exam
Feb 4, 2011
Request for entry into the European phase
Search/Exam
Jan 24, 2011
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Submission concerning representation
Search/Exam
Jan 19, 2011
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Nov 19, 2010
Information on entry into European phase
Search/Exam
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Mar 25, 2010
Published international application - A4
Search/Exam
Mar 2, 2010
Notification of election of EPO
Search/Exam
Feb 11, 2010
Notification of the recording of a change
Search/Exam
Feb 11, 2010
Notification of the recording of a change
Search/Exam
Feb 5, 2010
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PCT demand form
PCT2
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PCT demand form
PCT2
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PCT demand form
PCT2
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Copy of the international search report
Search/Exam
Jan 14, 2010
Published international application - A1
Search/Exam
Dec 1, 2009
Abstract
PCTISA
Nov 30, 2009
Nov 30, 2009
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Jul 20, 2009
Abstract
PCTISA
Jul 20, 2009
Claims
PCTISA
Jul 20, 2009
Description
PCTISA
Jul 20, 2009
Drawings
PCTISA