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The patent EP2309951 was granted to D Systems on Aug 29, 2018. The application was filed on Jun 11, 2008 under application number EP08768412A. 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 |
|---|---|---|---|
| FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV | May 28, 2019 | PFENNING | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2464391 |
| INTERNATIONAL-SEARCH-REPORT | US2001027348 |
| INTERNATIONAL-SEARCH-REPORT | US2007156252 |
| INTERNATIONAL-SEARCH-REPORT | US4608054 |
| INTERNATIONAL-SEARCH-REPORT | US5571207 |
| INTERNATIONAL-SEARCH-REPORT | US6942704 |
| INTERNATIONAL-SEARCH-REPORT | US6955692 |
| OPPOSITION | US2464391 |
| OPPOSITION | US5571207 |
| SEARCH | EP0985388 |
| SEARCH | GB2357725 |
| SEARCH | US2464391 |
| SEARCH | WO2008044052 |
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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Description
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Mar 30, 2022
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Refund of fees
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Decision to grant a European patent
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Jul 17, 2018
(Electronic) Receipt
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Jul 17, 2018
Filing of the translations of the claims
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French translation of claims
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German translation of the claims
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Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Mar 9, 2018
Text intended for grant (clean copy)
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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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Dec 1, 2017
Description
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Annex to the communication
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Aug 22, 2017
Communication from the Examining Division
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Apr 13, 2017
(Electronic) Receipt
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Apr 13, 2017
Letter accompanying subsequently filed items
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Annex to the communication
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Dec 6, 2016
Communication from the Examining Division
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May 9, 2016
Submission concerning representation
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Apr 22, 2016
Submission concerning representation
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Feb 27, 2016
Amended description with annotations
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Feb 27, 2016
Description
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Amended description with annotations
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Feb 26, 2016
Description
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Feb 26, 2016
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Annex to the communication
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Oct 19, 2015
Communication from the Examining Division
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May 2, 2015
Amended claims with annotations
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Apr 29, 2015
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Annex to the communication
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Oct 24, 2014
Communication from the Examining Division
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Jun 26, 2014
Amended claims with annotations
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Amended description with annotations
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Jun 26, 2014
Claims
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Description
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Amended claims with annotations
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Claims
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Description
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Submission concerning representation
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Annex to the communication
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Dec 20, 2013
Communication from the Examining Division
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Nov 27, 2012
Oct 30, 2012
Annexes in respect of a client data request
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Oct 30, 2012
Payment of fees and costs
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Oct 30, 2012
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(Electronic) Receipt
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Sep 18, 2012
Letter accompanying subsequently filed items
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Refund of fees
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Refund of fees
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Sep 18, 2012
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(Electronic) Receipt
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Jul 26, 2012
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Amendments received before examination
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Jul 26, 2012
Letter accompanying subsequently filed items
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European search opinion
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Jan 3, 2012
Supplementary European search report
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Apr 7, 2011
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Notification of election of EPO
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Mar 23, 2011
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(Electronic) Receipt
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Request for entry into the European phase
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Dec 17, 2010
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Information on entry into European phase
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Dec 3, 2009
Copy of the international search report
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Dec 3, 2009
Published international application - A1
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