The weekly litigation news digest is live. Subscribe now
The patent EP3250599 was granted to Oxford University Innovation on Apr 14, 2021. The application was filed on Jan 28, 2016 under application number EP16702773A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| STRAWMAN | Jan 12, 2022 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2007160611 |
| INTERNATIONAL-SEARCH-REPORT | WO2012069433 |
| INTERNATIONAL-SEARCH-REPORT | WO2014194274 |
| INTERNATIONAL-SEARCH-REPORT | WO9948523 |
| OPPOSITION | EP1904050 |
| OPPOSITION | EP3971212 |
| OPPOSITION | US2006171951 |
| OPPOSITION | US6531506 |
| OPPOSITION | US6693130 |
| OPPOSITION | WO2014194274 |
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
Get instant alerts for new documents
May 7, 2025
Refund of fees
Appeal
Apr 30, 2025
Apr 30, 2025
Apr 29, 2025
Apr 24, 2025
Apr 23, 2025
(Electronic) Receipt
Appeal
Apr 23, 2025
Apr 23, 2025
Withdrawal of an appeal
Appeal
Nov 11, 2024
Nov 6, 2024
(Electronic) Receipt
Appeal
Nov 6, 2024
Nov 6, 2024
Sep 30, 2024
Sep 30, 2024
Sep 25, 2024
Sep 24, 2024
Aug 28, 2024
Aug 22, 2024
(Electronic) Receipt
Appeal
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Reply to appeal
Appeal
Apr 22, 2024
Apr 19, 2024
(Electronic) Receipt
Appeal
Apr 19, 2024
Apr 19, 2024
Apr 19, 2024
Apr 19, 2024
Apr 17, 2024
Apr 17, 2024
Apr 15, 2024
(Electronic) Receipt
Appeal
Apr 15, 2024
Authorisation
Appeal
Apr 15, 2024
Apr 15, 2024
Mar 13, 2024
Letter accompanying subsequently filed items
Search/Exam
Feb 20, 2024
Feb 16, 2024
(Electronic) Receipt
Appeal
Feb 16, 2024
Feb 16, 2024
Notice of appeal
Appeal
Dec 21, 2023
Dec 21, 2023
Dec 21, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Means of redress
OPPO
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Nov 14, 2023
Nov 6, 2023
Nov 3, 2023
Nov 3, 2023
Nov 3, 2023
Nov 3, 2023
Nov 3, 2023
Nov 3, 2023
Nov 3, 2023
Sep 20, 2023
Sep 19, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Mar 9, 2023
Mar 9, 2023
Mar 9, 2023
Mar 7, 2023
Mar 7, 2023
Mar 6, 2023
Mar 6, 2023
Mar 6, 2023
Mar 6, 2023
Mar 6, 2023
Mar 6, 2023
Mar 6, 2023
Jun 1, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
Jan 26, 2022
Jan 26, 2022
Jan 18, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
Sep 20, 2021
Document concerning representation
Search/Exam
Apr 28, 2021
Mar 18, 2021
Decision to grant a European patent
Search/Exam
Mar 5, 2021
(Electronic) Receipt
Search/Exam
Mar 5, 2021
Filing of the translations of the claims
Search/Exam
Mar 5, 2021
French translation of claims
Search/Exam
Mar 5, 2021
German translation of the claims
Search/Exam
Mar 5, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 25, 2020
Nov 25, 2020
Nov 25, 2020
Intention to grant (signatures)
Search/Exam
Nov 25, 2020
Text intended for grant (clean copy)
Search/Exam
Nov 25, 2020
Text intended for grant (sequence listing)
Search/Exam
Nov 25, 2020
Sep 29, 2020
(Electronic) Receipt
Search/Exam
Sep 29, 2020
Amended claims with annotations
Search/Exam
Sep 29, 2020
Amended description with annotations
Search/Exam
Sep 29, 2020
Claims
Search/Exam
Sep 29, 2020
Description
Search/Exam
Sep 29, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 29, 2020
Sep 1, 2020
Annex to the communication
Search/Exam
Sep 1, 2020
Communication from the Examining Division
Search/Exam
Nov 25, 2019
(Electronic) Receipt
Search/Exam
Nov 25, 2019
Amended claims with annotations
Search/Exam
Nov 25, 2019
Claims
Search/Exam
Nov 25, 2019
Letter accompanying subsequently filed items
Search/Exam
Nov 25, 2019
Jul 16, 2019
Annex to the communication
Search/Exam
Jul 16, 2019
Communication from the Examining Division
Search/Exam
Mar 4, 2019
(Electronic) Receipt
Search/Exam
Mar 4, 2019
Amended claims with annotations
Search/Exam
Mar 4, 2019
Claims
Search/Exam
Mar 4, 2019
Letter accompanying subsequently filed items
Search/Exam
Mar 4, 2019
Jan 7, 2019
Dec 21, 2018
(Electronic) Receipt
Search/Exam
Dec 21, 2018
Letter accompanying subsequently filed items
Search/Exam
Dec 21, 2018
Aug 24, 2018
Annex to the communication
Search/Exam
Aug 24, 2018
Communication from the Examining Division
Search/Exam
May 7, 2018
Annex to the communication
Search/Exam
May 7, 2018
Apr 30, 2018
Examination started
Search/Exam
Mar 15, 2018
(Electronic) Receipt
Search/Exam
Mar 15, 2018
Mar 15, 2018
Amended claims with annotations
Search/Exam
Mar 15, 2018
Amendments received before examination
Search/Exam
Mar 15, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 8, 2017
Sep 5, 2017
Sep 1, 2017
Communication to designated inventor
Search/Exam
Sep 1, 2017
Communication to designated inventor
Search/Exam
Sep 1, 2017
Communication to designated inventor
Search/Exam
Sep 1, 2017
Communication to designated inventor
Search/Exam
Aug 31, 2017
Aug 14, 2017
Jul 28, 2017
(Electronic) Receipt
Search/Exam
Jul 28, 2017
Jul 28, 2017
Amended claims with annotations
Search/Exam
Jul 28, 2017
Jul 28, 2017
Matter concerning the application
Search/Exam
Jul 28, 2017
Modified abstract
Search/Exam
Jul 28, 2017
Request for entry into the European phase
Search/Exam
Jun 9, 2017
Information on entry into European phase
Search/Exam
Mar 22, 2017
Notification of the recording of a change
Search/Exam
Dec 21, 2016
Dec 21, 2016
Notification of the recording of a change
Search/Exam
Dec 16, 2016
Dec 16, 2016
Dec 16, 2016
Sep 16, 2016
Sep 16, 2016
Sep 16, 2016
Aug 23, 2016
Aug 23, 2016
Aug 23, 2016
Aug 11, 2016
Aug 11, 2016
Notification of the recording of a change
Search/Exam
Aug 4, 2016
Converted Sequence Listing
Search/Exam
Aug 4, 2016
Copy of the international search report
Search/Exam
Aug 4, 2016
Published international application - A1
Search/Exam
Jul 4, 2016
ISR: cited documents
PCTISA
Jul 1, 2016
Jul 1, 2016
Jul 1, 2016
Apr 25, 2016
Feb 26, 2016
Feb 22, 2016
Feb 22, 2016
Feb 5, 2016
Abstract
PCTISA
Feb 5, 2016
Claims
PCTISA
Feb 5, 2016
Description
PCTISA
Feb 5, 2016
Drawings
PCTISA
Feb 5, 2016
Feb 5, 2016
Feb 5, 2016
Feb 5, 2016
Feb 5, 2016