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The patent EP3226887 was granted to Acceleron Pharma on Mar 27, 2024. The application was filed on Dec 3, 2015 under application number EP15865103A. 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 |
|---|---|---|---|
| WUESTHOFF & WUESTHOFF | Dec 20, 2024 | WICHMANN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0404097 |
| DESCRIPTION | US2005079574 |
| DESCRIPTION | US2005119455 |
| DESCRIPTION | US2005266000 |
| DESCRIPTION | US2006025576 |
| DESCRIPTION | US2006148748 |
| DESCRIPTION | US2007061900 |
| DESCRIPTION | US2007117126 |
| DESCRIPTION | US2007160598 |
| DESCRIPTION | US2007237764 |
| DESCRIPTION | US2007292936 |
| DESCRIPTION | US2009002360 |
| DESCRIPTION | US2010028331 |
| DESCRIPTION | US4816567 |
| DESCRIPTION | US5096815 |
| DESCRIPTION | US5198346 |
| DESCRIPTION | US5223409 |
| DESCRIPTION | US5270163 |
| DESCRIPTION | US5278065 |
| DESCRIPTION | US5283317 |
| DESCRIPTION | US5475096 |
| DESCRIPTION | US5500362 |
| DESCRIPTION | US5525490 |
| DESCRIPTION | US5567588 |
| DESCRIPTION | US5571894 |
| DESCRIPTION | US5580737 |
| DESCRIPTION | US5587458 |
| DESCRIPTION | US5677196 |
| DESCRIPTION | US5707796 |
| DESCRIPTION | US5750373 |
| DESCRIPTION | US5763177 |
| DESCRIPTION | US5770429 |
| DESCRIPTION | US5821337 |
| DESCRIPTION | US5869046 |
| DESCRIPTION | US5955280 |
| DESCRIPTION | US5965368 |
| DESCRIPTION | US6011577 |
| DESCRIPTION | US6075181 |
| DESCRIPTION | US6150584 |
| DESCRIPTION | US6248516 |
| DESCRIPTION | US6319499 |
| DESCRIPTION | US6537966 |
| DESCRIPTION | US6699843 |
| DESCRIPTION | US6737056 |
| DESCRIPTION | US6982321 |
| DESCRIPTION | US7041870 |
| DESCRIPTION | US7087409 |
| DESCRIPTION | US7189826 |
| DESCRIPTION | US7332581 |
| DESCRIPTION | US7521541 |
| DESCRIPTION | US7527791 |
| DESCRIPTION | US7612041 |
| DESCRIPTION | US7709605 |
| DESCRIPTION | US7842663 |
| DESCRIPTION | WO0000823 |
| DESCRIPTION | WO0039585 |
| DESCRIPTION | WO0043781 |
| DESCRIPTION | WO2005025601 |
| DESCRIPTION | WO2005100402 |
| DESCRIPTION | WO2006012627 |
| DESCRIPTION | WO2006029879 |
| DESCRIPTION | WO2007053775 |
| DESCRIPTION | WO2008030367 |
| DESCRIPTION | WO2008097541 |
| DESCRIPTION | WO2010019261 |
| DESCRIPTION | WO2013059347 |
| DESCRIPTION | WO9301161 |
| DESCRIPTION | WO9316185 |
| DESCRIPTION | WO9626432 |
| INTERNATIONAL-SEARCH-REPORT | WO2008076437 |
| INTERNATIONAL-SEARCH-REPORT | WO2011020045 |
| INTERNATIONAL-SEARCH-REPORT | WO2013059347 |
| INTERNATIONAL-SEARCH-REPORT | WO2014066487 |
| INTERNATIONAL-SEARCH-REPORT | WO2015161220 |
| OPPOSITION | WO2016090077 |
| SEARCH | WO2013059347 |
| SEARCH | WO2015161220 |
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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Authorisation
OPPO
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Apr 9, 2024
Feb 29, 2024
Decision to grant a European patent
Search/Exam
Feb 16, 2024
(Electronic) Receipt
Search/Exam
Feb 16, 2024
Filing of the translations of the claims
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Feb 16, 2024
French translation of claims
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Feb 16, 2024
German translation of the claims
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Feb 16, 2024
Letter accompanying subsequently filed items
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Oct 18, 2023
Oct 18, 2023
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Oct 18, 2023
Intention to grant (signatures)
Search/Exam
Oct 18, 2023
Text intended for grant (clean copy)
Search/Exam
Oct 18, 2023
Sep 7, 2023
(Electronic) Receipt
Search/Exam
Sep 7, 2023
Amended claims with annotations
Search/Exam
Sep 7, 2023
Claims
Search/Exam
Sep 7, 2023
Letter accompanying subsequently filed items
Search/Exam
Sep 7, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
Intention to grant (signatures)
Search/Exam
May 19, 2023
Text intended for grant (clean copy)
Search/Exam
May 19, 2023
Feb 23, 2023
(Electronic) Receipt
Search/Exam
Feb 23, 2023
Amended claims with annotations
Search/Exam
Feb 23, 2023
Amended description with annotations
Search/Exam
Feb 23, 2023
Claims
Search/Exam
Feb 23, 2023
Description
Search/Exam
Feb 23, 2023
Letter accompanying subsequently filed items
Search/Exam
Feb 23, 2023
Oct 17, 2022
Annex to the communication
Search/Exam
Oct 17, 2022
Communication from the Examining Division
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Jul 1, 2022
Decision to allow further processing
Search/Exam
Jun 21, 2022
(Electronic) Receipt
Search/Exam
Jun 21, 2022
Amended claims with annotations
Search/Exam
Jun 21, 2022
Annex
Search/Exam
Jun 21, 2022
Claims
Search/Exam
Jun 21, 2022
Letter accompanying subsequently filed items
Search/Exam
Jun 21, 2022
Request for further processing
Search/Exam
Apr 11, 2022
Dec 22, 2021
Dec 17, 2021
(Electronic) Receipt
Search/Exam
Dec 17, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 17, 2021
Sep 8, 2021
Annex to the communication
Search/Exam
Sep 8, 2021
Communication from the Examining Division
Search/Exam
Jul 13, 2021
Jul 8, 2021
(Electronic) Receipt
Search/Exam
Jul 8, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 8, 2021
Jul 8, 2021
Submission concerning representation
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Jul 7, 2021
Authorisation
Search/Exam
Jul 7, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 7, 2021
Jul 2, 2021
Jun 23, 2021
Annexes in respect of a client data request
Search/Exam
Jun 23, 2021
General authorisation
Search/Exam
Jun 23, 2021
Jun 18, 2021
Annexes in respect of a client data request
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Jun 18, 2021
General authorisation
Search/Exam
Jun 18, 2021
Jun 17, 2021
Jun 15, 2021
Annexes in respect of a client data request
Search/Exam
Jun 15, 2021
General authorisation
Search/Exam
Jun 15, 2021
Jun 11, 2021
May 10, 2021
Apr 23, 2021
(Electronic) Receipt
Search/Exam
Apr 23, 2021
Enquiry as to the processing of the file
Search/Exam
Apr 23, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 31, 2020
(Electronic) Receipt
Search/Exam
Jul 31, 2020
Amended claims with annotations
Search/Exam
Jul 31, 2020
Annex
Search/Exam
Jul 31, 2020
Claims
Search/Exam
Jul 31, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 31, 2020
May 7, 2020
Apr 29, 2020
(Electronic) Receipt
Search/Exam
Apr 29, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 29, 2020
Jan 22, 2020
Annex to the communication
Search/Exam
Jan 22, 2020
Communication from the Examining Division
Search/Exam
Dec 23, 2019
Examination started
Search/Exam
Sep 20, 2019
Sep 6, 2019
(Electronic) Receipt
Search/Exam
Sep 6, 2019
Enquiry as to the processing of the file
Search/Exam
Sep 6, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 13, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 13, 2019
Jun 5, 2019
May 31, 2019
Feb 5, 2019
(Electronic) Receipt
Search/Exam
Feb 5, 2019
Feb 5, 2019
Amended claims with annotations
Search/Exam
Feb 5, 2019
Amendments received before examination
Search/Exam
Feb 5, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 26, 2018
Jul 9, 2018
Jul 9, 2018
European search opinion
Search/Exam
Jul 9, 2018
Information on Search Strategy
Search/Exam
Jul 9, 2018
Supplementary European search report
Search/Exam
Jun 11, 2018
Search started
Search/Exam
May 9, 2018
May 4, 2018
(Electronic) Receipt
Search/Exam
May 4, 2018
Annexes in respect of a client data request
Search/Exam
May 4, 2018
Letter accompanying subsequently filed items
Search/Exam
May 4, 2018
Feb 2, 2018
(Electronic) Receipt
Search/Exam
Feb 2, 2018
Feb 2, 2018
Amendments received before examination
Search/Exam
Feb 2, 2018
Amendments received before examination
Search/Exam
Feb 2, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 13, 2017
Jul 27, 2017
Jul 10, 2017
Communication to designated inventor
Search/Exam
Jul 10, 2017
Communication to designated inventor
Search/Exam
Jun 29, 2017
(Electronic) Receipt
Search/Exam
Jun 29, 2017
Converted Sequence Listing
Search/Exam
Jun 29, 2017
Matter concerning the application
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Jun 29, 2017
Request for entry into the European phase
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Jun 29, 2017
Submission concerning representation
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Jun 19, 2017
May 15, 2017
Notification of the recording of a change
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Apr 18, 2017
Information on entry into European phase
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Jun 28, 2016
Jun 28, 2016
Jun 28, 2016
Jun 9, 2016
Copy of the international search report
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Jun 9, 2016
Published international application - A1
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