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The patent EP2548950 was granted to Cellular Dynamics on Oct 25, 2017. The application was filed on Jun 4, 2010 under application number EP12177512A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| MATHYS & SQUIRE | Jul 25, 2018 | GREGSON | ADMISSIBLE |
| LONZA WALKERSVILLE | Jul 25, 2018 | EDER | WITHDRAWN |
| STRAWMAN | Jul 24, 2018 | MEWBURN ELLIS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US20080058858 |
| DESCRIPTION | US20080088054 |
| DESCRIPTION | US20090156304 |
| DESCRIPTION | US20090172079 |
| DESCRIPTION | EP0045665 |
| DESCRIPTION | EP0273085 |
| DESCRIPTION | US2003211603 |
| DESCRIPTION | US2007238170 |
| DESCRIPTION | US2008038820 |
| DESCRIPTION | US2008226558 |
| DESCRIPTION | US2008254003 |
| DESCRIPTION | US2009047739 |
| DESCRIPTION | US4683202 |
| DESCRIPTION | US4684611 |
| DESCRIPTION | US4952500 |
| DESCRIPTION | US5302523 |
| DESCRIPTION | US5322783 |
| DESCRIPTION | US5384253 |
| DESCRIPTION | US5464765 |
| DESCRIPTION | US5538877 |
| DESCRIPTION | US5538880 |
| DESCRIPTION | US5550318 |
| DESCRIPTION | US5563055 |
| DESCRIPTION | US5580859 |
| DESCRIPTION | US5589466 |
| DESCRIPTION | US5591616 |
| DESCRIPTION | US5610042 |
| DESCRIPTION | US5656610 |
| DESCRIPTION | US5702932 |
| DESCRIPTION | US5736524 |
| DESCRIPTION | US5780448 |
| DESCRIPTION | US5789215 |
| DESCRIPTION | US5925565 |
| DESCRIPTION | US5928906 |
| DESCRIPTION | US5935819 |
| DESCRIPTION | US5945100 |
| DESCRIPTION | US5981274 |
| DESCRIPTION | US5994624 |
| DESCRIPTION | WO9409699 |
| DESCRIPTION | WO9503408 |
| DESCRIPTION | WO9506128 |
| DESCRIPTION | WO9920741 |
| OPPOSITION | WO2009032456 |
| OPPOSITION | WO2009149233 |
| OPPOSITION | WO2010141801 |
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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Annexes in respect of a client data request
Search/Exam
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Annexes in respect of a client data request
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Apr 24, 2018
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Decision to grant a European patent
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Sep 7, 2017
Filing of the translations of the claims
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Sep 7, 2017
French translation of claims
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Sep 7, 2017
German translation of the claims
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Sep 7, 2017
Payment of fees and costs
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May 19, 2017
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Intention to grant (signatures)
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May 19, 2017
Text intended for grant (clean copy)
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May 19, 2017
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Amended claims with annotations
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Amended description with annotations
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Claims
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Description
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Annex to the communication
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Mar 15, 2016
Communication from the Examining Division
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Jun 16, 2015
Amended claims with annotations
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Jun 16, 2015
Claims
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Jun 16, 2015
Apr 1, 2015
Annex to the communication
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Apr 1, 2015
Communication from the Examining Division
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Mar 12, 2015
Submission concerning representation
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Jan 7, 2015
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Amended claims with annotations
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May 21, 2014
Claims
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May 21, 2014
Jan 28, 2014
Annex to the communication
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Jan 28, 2014
Communication from the Examining Division
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Jan 21, 2014
Examination started
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Aug 20, 2013
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Amended claims with annotations
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Aug 20, 2013
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Aug 20, 2013
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Payment of fees and costs
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Feb 25, 2013
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European search opinion
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Jan 21, 2013
European search report
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Jan 15, 2013
Jan 4, 2013
Notification of forthcoming publication
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Nov 21, 2012
Payment of fees and costs
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Nov 12, 2012
Notice on debiting of fees
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Nov 6, 2012
(Electronic) Receipt
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Nov 6, 2012
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Letter accompanying subsequently filed items
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Nov 6, 2012
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Oct 8, 2012
Communication to designated inventor
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Sep 4, 2012
Jul 23, 2012
Abstract
Search/Exam
Jul 23, 2012
Jul 23, 2012
Claims
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Jul 23, 2012
Description
Search/Exam
Jul 23, 2012
Designation of inventor
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Jul 23, 2012
Designation of inventor
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Jul 23, 2012
Designation of inventor
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Jul 23, 2012
Designation of inventor
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Jul 23, 2012
Designation of inventor
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Jul 23, 2012
Designation of inventor
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Jul 23, 2012
Drawings
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Jul 23, 2012
Letter concerning search matters
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Jul 23, 2012
Request for grant of a European patent
Search/Exam
Dec 30, 2010
Dec 30, 2010