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The patent EP3234134 was granted to Proqr Therapeutics II on May 27, 2020. The application was filed on Dec 17, 2015 under application number EP15813826A. 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 |
|---|---|---|---|
| MARGARET DIXON | Feb 25, 2021 | MAIWALD | ADMISSIBLE |
| STRAWMAN | Feb 25, 2021 | LEONARD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | EP3323890 |
| EXAMINATION | WO2017050306 |
| INTERNATIONAL-SEARCH-REPORT | WO2014011053 |
| OPPOSITION | EP3353299 |
| OPPOSITION | US9650627 |
| OPPOSITION | WO2005094370 |
| OPPOSITION | WO2014011053 |
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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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Oct 8, 2024
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Sep 27, 2024
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Sep 9, 2024
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Feb 28, 2024
(Electronic) Receipt
Appeal
Feb 28, 2024
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Reply to appeal
Appeal
Feb 28, 2024
Reply to appeal
Appeal
Oct 20, 2023
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Oct 12, 2023
(Electronic) Receipt
Appeal
Oct 12, 2023
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Appeal
Oct 10, 2023
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Appeal
Aug 9, 2023
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Notice of appeal
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(Electronic) Receipt
Appeal
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Annex
OPPO
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(Electronic) Receipt
Appeal
Jun 1, 2023
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Notice of appeal
Appeal
May 25, 2023
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Jun 8, 2020
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Decision to grant a European patent
Search/Exam
Apr 14, 2020
(Electronic) Receipt
Search/Exam
Apr 14, 2020
Filing of the translations of the claims
Search/Exam
Apr 14, 2020
French translation of claims
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Apr 14, 2020
German translation of the claims
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Apr 14, 2020
Letter accompanying subsequently filed items
Search/Exam
Dec 11, 2019
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Intention to grant (signatures)
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Dec 11, 2019
Text intended for grant (clean copy)
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Dec 11, 2019
Text intended for grant (sequence listing)
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Dec 11, 2019
Dec 5, 2019
Nov 25, 2019
(Electronic) Receipt
Search/Exam
Nov 25, 2019
Enquiry as to the processing of the file
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Nov 25, 2019
Letter accompanying subsequently filed items
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Apr 10, 2019
(Electronic) Receipt
Search/Exam
Apr 10, 2019
Amended claims with annotations
Search/Exam
Apr 10, 2019
Amended description with annotations
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Apr 10, 2019
Claims
Search/Exam
Apr 10, 2019
Description
Search/Exam
Apr 10, 2019
Letter accompanying subsequently filed items
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Apr 10, 2019
Mar 15, 2019
Annex to the communication
Search/Exam
Mar 15, 2019
Communication from the Examining Division
Search/Exam
Nov 14, 2018
(Electronic) Receipt
Search/Exam
Nov 14, 2018
Amended claims with annotations
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Nov 14, 2018
Citation for the examination procedure
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Nov 14, 2018
Citation for the examination procedure
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Nov 14, 2018
Claims
Search/Exam
Nov 14, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 14, 2018
Sep 7, 2018
Sep 3, 2018
(Electronic) Receipt
Search/Exam
Sep 3, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 3, 2018
Jun 5, 2018
May 31, 2018
May 14, 2018
Annex to the communication
Search/Exam
May 14, 2018
Communication from the Examining Division
Search/Exam
May 7, 2018
Examination started
Search/Exam
Sep 27, 2017
Sep 11, 2017
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Sep 6, 2017
Sep 4, 2017
Aug 22, 2017
Aug 11, 2017
Aug 9, 2017
(Electronic) Receipt
Search/Exam
Aug 9, 2017
Letter accompanying subsequently filed items
Search/Exam
Aug 9, 2017
Aug 7, 2017
(Electronic) Receipt
Search/Exam
Aug 7, 2017
Letter accompanying subsequently filed items
Search/Exam
Aug 7, 2017
Jul 28, 2017
Communication to designated inventor
Search/Exam
Jul 28, 2017
Communication to designated inventor
Search/Exam
Jul 17, 2017
(Electronic) Receipt
Search/Exam
Jul 17, 2017
Jul 17, 2017
Amended claims with annotations
Search/Exam
Jul 17, 2017
Converted Sequence Listing
Search/Exam
Jul 17, 2017
Request for entry into the European phase
Search/Exam
Jul 4, 2017
May 2, 2017
Information on entry into European phase
Search/Exam
Mar 29, 2017
Mar 29, 2017
Mar 29, 2017
Notification of the recording of a change
Search/Exam
Jul 19, 2016
Jul 19, 2016
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Notification of the recording of a change
Search/Exam
Jul 12, 2016
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Jun 23, 2016
Converted Sequence Listing
Search/Exam
Jun 23, 2016
Copy of the international search report
Search/Exam
Jun 23, 2016
Published international application - A1
Search/Exam
Apr 1, 2016
ISR: cited documents
PCTISA
Mar 31, 2016
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Mar 4, 2016
(Electronic) Receipt
PCTRO
Mar 4, 2016
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Dec 17, 2015
(Electronic) Receipt
PCTRO
Dec 17, 2015
Abstract
PCTRO
Dec 17, 2015
Claims
PCTRO
Dec 17, 2015
Description
PCTRO
Dec 17, 2015
Dec 17, 2015
Drawings
PCTRO
Dec 17, 2015