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The patent EP2256135 was granted to CSL Behring on Mar 13, 2019. The application was filed on Jun 14, 2007 under application number EP10168453A. 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 |
|---|---|---|---|
| BIOVERATIV THERAPEUTICS | Dec 13, 2019 | ZWICKER | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US4784950 |
| DESCRIPTION | WO0179271 |
| DESCRIPTION | WO0204598 |
| DESCRIPTION | WO03059935 |
| DESCRIPTION | WO03068934 |
| DESCRIPTION | WO2004081053 |
| DESCRIPTION | WO2004101740 |
| DESCRIPTION | WO2005001025 |
| DESCRIPTION | WO2005024044 |
| DESCRIPTION | WO9109125 |
| EXAMINATION | EP1816201 |
| OPPOSITION | EP1444986 |
| OPPOSITION | WO2004101740 |
| SEARCH | EP1444986 |
| SEARCH | WO2004021861 |
| SEARCH | WO2004101739 |
| SEARCH | WO2004101740 |
| SEARCH | WO9601653 |
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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Mar 25, 2019
Feb 14, 2019
Decision to grant a European patent
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Jan 31, 2019
(Electronic) Receipt
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Jan 31, 2019
Filing of the translations of the claims
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Jan 31, 2019
French translation of claims
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Jan 31, 2019
German translation of the claims
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Jan 31, 2019
Letter accompanying subsequently filed items
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Jan 8, 2019
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Intention to grant (signatures)
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Jan 8, 2019
Text intended for grant (clean copy)
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Jan 8, 2019
Text intended for grant (sequence listing)
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Jan 8, 2019
Nov 20, 2018
(Electronic) Receipt
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Nov 20, 2018
Amended claims with annotations
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Nov 20, 2018
Amended description with annotations
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Nov 20, 2018
Claims
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Nov 20, 2018
Description
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Nov 20, 2018
Letter accompanying subsequently filed items
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Nov 20, 2018
Aug 13, 2018
Annex to the communication
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Aug 13, 2018
Communication from the Examining Division
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Jun 13, 2018
Observations by third parties
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Jun 13, 2018
Observations by third parties
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Intention to grant (signatures)
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Apr 20, 2018
Text intended for grant (clean copy)
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Apr 20, 2018
Text intended for grant (sequence listing)
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Apr 20, 2018
Nov 16, 2017
(Electronic) Receipt
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Nov 16, 2017
Amended claims with annotations
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Nov 16, 2017
Amended description with annotations
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Nov 16, 2017
Claims
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Nov 16, 2017
Description
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Nov 16, 2017
Letter accompanying subsequently filed items
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Nov 16, 2017
Jul 31, 2017
Jul 24, 2017
Jul 6, 2017
Annex to the communication
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Jul 6, 2017
Communication from the Examining Division
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Apr 1, 2016
(Electronic) Receipt
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Apr 1, 2016
Amended claims with annotations
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Apr 1, 2016
Claims
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Apr 1, 2016
Letter accompanying subsequently filed items
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Apr 1, 2016
Jan 8, 2016
Dec 21, 2015
(Electronic) Receipt
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Dec 21, 2015
Letter accompanying subsequently filed items
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Dec 21, 2015
Oct 29, 2015
Oct 23, 2015
(Electronic) Receipt
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Oct 23, 2015
Letter accompanying subsequently filed items
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Oct 23, 2015
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Jul 7, 2015
(Electronic) Receipt
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Jul 7, 2015
Letter accompanying subsequently filed items
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Jul 7, 2015
Jun 22, 2015
Annex to the communication
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Jun 22, 2015
Communication from the Examining Division
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Nov 14, 2013
(Electronic) Receipt
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Nov 14, 2013
Amended claims with annotations
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Nov 14, 2013
Claims
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Nov 14, 2013
Letter accompanying subsequently filed items
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Nov 14, 2013
Nov 11, 2013
Invitation to confirm documents filed by fax
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Nov 5, 2013
Amended claims with annotations
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Nov 5, 2013
Claims
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Nov 5, 2013
Jul 19, 2013
Annex to the communication
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Jul 19, 2013
Communication from the Examining Division
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Nov 18, 2011
Oct 13, 2011
Oct 4, 2011
Jul 14, 2011
Annex to the communication
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Jul 14, 2011
Communication from the Examining Division
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May 26, 2011
May 26, 2011
Amended claims with annotations
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May 26, 2011
Amendments received before examination
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Dec 6, 2010
Nov 4, 2010
Notification of forthcoming publication
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Oct 20, 2010
Refund of fees
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Oct 7, 2010
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European search opinion
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Oct 7, 2010
European search report
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Aug 23, 2010
Jul 5, 2010
Abstract
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Jul 5, 2010
Jul 5, 2010
Claims
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Jul 5, 2010
Description
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Jul 5, 2010
Designation of inventor
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Jul 5, 2010
Designation of inventor
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Jul 5, 2010
Designation of inventor
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Jul 5, 2010
Drawings
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Jul 5, 2010
Request for grant of a European patent
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Jul 5, 2010
Sequence listing
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Jan 10, 2008
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