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The patent EP2847223 was granted to Trustees OF Dartmouth College on Apr 9, 2025. The application was filed on May 7, 2013 under application number EP13787935A. 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 |
|---|---|---|---|
| BOEHRINGER INGELHEIM | Dec 20, 2019 | HOFFMANN EITLE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2004152105 |
| DESCRIPTION | US3832253 |
| DESCRIPTION | US3854480 |
| DESCRIPTION | US4452775 |
| DESCRIPTION | US4667014 |
| DESCRIPTION | US4748034 |
| DESCRIPTION | US5239660 |
| DESCRIPTION | US5929212 |
| DESCRIPTION | WO0134768 |
| DESCRIPTION | WO2008122039 |
| DESCRIPTION | WO2011070443 |
| INTERNATIONAL-SEARCH-REPORT | US2003119018 |
| INTERNATIONAL-SEARCH-REPORT | US2004043401 |
| INTERNATIONAL-SEARCH-REPORT | US2011027278 |
| INTERNATIONAL-SEARCH-REPORT | US2011081346 |
| INTERNATIONAL-SEARCH-REPORT | US2011217305 |
| INTERNATIONAL-SEARCH-REPORT | WO2011070443 |
| OPPOSITION | US2004152105 |
| OPPOSITION | WO0134768 |
| OPPOSITION | WO2009046407 |
| OPPOSITION | WO2011070443 |
| OPPOSITION | WO2012162067 |
| OPPOSITION | WO2013169691 |
| SEARCH | US2011081346 |
| SEARCH | WO0023573 |
| SEARCH | WO2006060878 |
| SEARCH | WO2009091826 |
| SEARCH | WO2011041093 |
| SEARCH | WO2011070443 |
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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Mar 13, 2025
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Appeal
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Appeal
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(Electronic) Receipt
Appeal
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Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
May 3, 2022
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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OPPO
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Apr 8, 2019
Feb 28, 2019
Decision to grant a European patent
Search/Exam
Feb 14, 2019
(Electronic) Receipt
Search/Exam
Feb 14, 2019
Filing of the translations of the claims
Search/Exam
Feb 14, 2019
French translation of claims
Search/Exam
Feb 14, 2019
German translation of the claims
Search/Exam
Feb 14, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 30, 2019
Dec 4, 2018
Nov 27, 2018
Non-patent literature filed by a third party
Search/Exam
Nov 27, 2018
Non-patent literature filed by a third party
Search/Exam
Nov 27, 2018
Non-patent literature filed by a third party
Search/Exam
Nov 27, 2018
Observations by third parties
Search/Exam
Nov 27, 2018
Patent document filed by a Third party
Search/Exam
Nov 27, 2018
Patent document filed by a Third party
Search/Exam
Oct 9, 2018
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Intention to grant (signatures)
Search/Exam
Oct 9, 2018
Text intended for grant (clean copy)
Search/Exam
Oct 9, 2018
Text intended for grant (sequence listing)
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Oct 9, 2018
Mar 23, 2018
(Electronic) Receipt
Search/Exam
Mar 23, 2018
Amended description with annotations
Search/Exam
Mar 23, 2018
Description
Search/Exam
Mar 23, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 23, 2018
Jan 18, 2018
Annex to the communication
Search/Exam
Jan 18, 2018
Communication from the Examining Division
Search/Exam
Dec 7, 2017
Examination started
Search/Exam
Jul 7, 2016
(Electronic) Receipt
Search/Exam
Jul 7, 2016
Jul 7, 2016
Amended claims with annotations
Search/Exam
Jul 7, 2016
Amendments received before examination
Search/Exam
Jul 7, 2016
Letter accompanying subsequently filed items
Search/Exam
Jul 7, 2016
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Jan 11, 2016
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European search opinion
Search/Exam
Dec 21, 2015
Information on Search Strategy
Search/Exam
Dec 21, 2015
Supplementary European search report
Search/Exam
Dec 10, 2015
Search started
Search/Exam
Aug 7, 2015
(Electronic) Receipt
Search/Exam
Aug 7, 2015
Aug 7, 2015
Amended claims with annotations
Search/Exam
Aug 7, 2015
Amendments received before examination
Search/Exam
Aug 7, 2015
Letter accompanying subsequently filed items
Search/Exam
Feb 18, 2015
Feb 10, 2015
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Communication to designated inventor
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Jan 14, 2015
Communication to designated inventor
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Dec 3, 2014
(Electronic) Receipt
Search/Exam
Dec 3, 2014
Converted Sequence Listing
Search/Exam
Dec 3, 2014
Request for entry into the European phase
Search/Exam
Nov 25, 2014
Sep 19, 2014
Information on entry into European phase
Search/Exam
Dec 4, 2013
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Converted Sequence Listing
Search/Exam
Nov 14, 2013
Copy of the international search report
Search/Exam
Nov 14, 2013
Published international application - A1
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