The weekly litigation news digest is live. Subscribe now
The patent EP3227257 was granted to Cerdia on Oct 27, 2021. The application was filed on Dec 1, 2015 under application number EP15802116A. 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 |
|---|---|---|---|
| TITAN WOOD | Jul 27, 2022 | VO | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | EP3169456 |
| EXAMINATION | WO2016009060 |
| INTERNATIONAL-SEARCH-REPORT | DE663507 |
| INTERNATIONAL-SEARCH-REPORT | US2009275777 |
| INTERNATIONAL-SEARCH-REPORT | US2013197267 |
| OPPOSITION | EP0213252 |
| OPPOSITION | EP2975016 |
| OPPOSITION | US2009275777 |
| OPPOSITION | US2012323039 |
| OPPOSITION | WO2009114070 |
| OPPOSITION | WO2009120257 |
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
Nov 28, 2025
Refund of fees
Search/Exam
Nov 26, 2025
Nov 26, 2025
Nov 26, 2025
Nov 26, 2025
Nov 26, 2025
Oct 23, 2025
Oct 20, 2025
(Electronic) Receipt
Appeal
Oct 20, 2025
Oct 20, 2025
Oct 20, 2025
Oct 6, 2025
(Electronic) Receipt
Appeal
Oct 6, 2025
Sep 25, 2025
Sep 19, 2025
(Electronic) Receipt
Appeal
Sep 19, 2025
(Electronic) Receipt
Appeal
Sep 19, 2025
Sep 19, 2025
Sep 19, 2025
Sep 11, 2025
Sep 8, 2025
(Electronic) Receipt
Appeal
Sep 8, 2025
(Electronic) Receipt
Appeal
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Jul 9, 2025
Jul 9, 2025
Jul 1, 2025
Jul 1, 2025
Jul 1, 2025
Jun 26, 2025
(Electronic) Receipt
Appeal
Jun 26, 2025
Jun 26, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 4, 2025
Feb 27, 2025
Jan 7, 2025
Dec 23, 2024
(Electronic) Receipt
Appeal
Dec 23, 2024
Dec 23, 2024
Nov 22, 2024
Nov 19, 2024
(Electronic) Receipt
Appeal
Nov 19, 2024
Nov 19, 2024
Oct 7, 2024
Oct 7, 2024
Sep 26, 2024
Aug 19, 2024
Jul 5, 2024
Jul 1, 2024
(Electronic) Receipt
Appeal
Jul 1, 2024
Jul 1, 2024
Reply to appeal
Appeal
Mar 1, 2024
Feb 26, 2024
(Electronic) Receipt
Appeal
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Nov 27, 2023
Nov 27, 2023
Nov 21, 2023
(Electronic) Receipt
Appeal
Nov 21, 2023
Nov 21, 2023
Notice of appeal
Appeal
Oct 26, 2023
Oct 24, 2023
Oct 24, 2023
Oct 24, 2023
Oct 24, 2023
Oct 24, 2023
Means of redress
OPPO
Oct 24, 2023
Oct 24, 2023
Oct 24, 2023
Oct 24, 2023
Oct 24, 2023
Oct 24, 2023
Oct 24, 2023
Oct 20, 2023
Sep 21, 2023
Jul 27, 2023
Jul 27, 2023
Jul 21, 2023
Jul 21, 2023
Jul 21, 2023
Jul 21, 2023
Jul 21, 2023
Jul 21, 2023
Jul 21, 2023
Jul 20, 2023
Jul 20, 2023
Jul 20, 2023
Jul 20, 2023
Jul 20, 2023
Jul 20, 2023
Jul 20, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Mar 24, 2023
Mar 20, 2023
Mar 20, 2023
Mar 17, 2023
Mar 17, 2023
Mar 17, 2023
Mar 17, 2023
Mar 17, 2023
Mar 17, 2023
Jan 2, 2023
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Aug 17, 2022
Aug 9, 2022
Aug 9, 2022
Aug 4, 2022
Jul 27, 2022
Jul 27, 2022
Jul 27, 2022
Jul 27, 2022
Jul 27, 2022
Jul 27, 2022
Jul 27, 2022
Jul 27, 2022
Jul 27, 2022
Jul 27, 2022
Jul 27, 2022
Nov 9, 2021
Sep 30, 2021
Decision to grant a European patent
Search/Exam
Sep 20, 2021
(Electronic) Receipt
Search/Exam
Sep 20, 2021
Filing of the translations of the claims
Search/Exam
Sep 20, 2021
French translation of claims
Search/Exam
Sep 20, 2021
German translation of the claims
Search/Exam
Sep 20, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 24, 2021
Jun 24, 2021
Jun 24, 2021
Intention to grant (signatures)
Search/Exam
Jun 24, 2021
Text intended for grant (clean copy)
Search/Exam
Jun 24, 2021
Jun 21, 2021
Jun 14, 2021
Annexes in respect of a client data request
Search/Exam
Jun 14, 2021
Annexes in respect of a client data request
Search/Exam
Jun 14, 2021
Annexes in respect of a client data request
Search/Exam
Jun 14, 2021
Feb 18, 2021
(Electronic) Receipt
Search/Exam
Feb 18, 2021
Amended claims with annotations
Search/Exam
Feb 18, 2021
Amended description with annotations
Search/Exam
Feb 18, 2021
Claims
Search/Exam
Feb 18, 2021
Description
Search/Exam
Feb 18, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 18, 2021
Oct 14, 2020
Annex to the communication
Search/Exam
Oct 14, 2020
Communication from the Examining Division
Search/Exam
May 19, 2020
(Electronic) Receipt
Search/Exam
May 19, 2020
Amended claims with annotations
Search/Exam
May 19, 2020
Claims
Search/Exam
May 19, 2020
Letter accompanying subsequently filed items
Search/Exam
May 19, 2020
Mar 25, 2020
Mar 20, 2020
(Electronic) Receipt
Search/Exam
Mar 20, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 20, 2020
Nov 11, 2019
Annex to the communication
Search/Exam
Nov 11, 2019
Communication from the Examining Division
Search/Exam
Aug 1, 2019
(Electronic) Receipt
Search/Exam
Aug 1, 2019
Amended claims with annotations
Search/Exam
Aug 1, 2019
Claims
Search/Exam
Aug 1, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 1, 2019
Jun 27, 2019
Jun 24, 2019
(Electronic) Receipt
Search/Exam
Jun 24, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 24, 2019
Feb 15, 2019
Annex to the communication
Search/Exam
Feb 15, 2019
Communication from the Examining Division
Search/Exam
Feb 11, 2019
Examination started
Search/Exam
Jan 24, 2018
(Electronic) Receipt
Search/Exam
Jan 24, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 24, 2018
Reply to Written Opinion prepared by the EPO
Search/Exam
Dec 15, 2017
Dec 12, 2017
Nov 2, 2017
Oct 23, 2017
Oct 23, 2017
Oct 18, 2017
Oct 18, 2017
Oct 16, 2017
General authorisation
Search/Exam
Oct 16, 2017
Sep 13, 2017
Jul 14, 2017
Jul 12, 2017
Communication to designated inventor
Search/Exam
Jul 12, 2017
Communication to designated inventor
Search/Exam
Jul 12, 2017
Communication to designated inventor
Search/Exam
Jul 7, 2017
Priority search results copy provided by EPO
Search/Exam
Jun 19, 2017
May 5, 2017
(Electronic) Receipt
Search/Exam
May 5, 2017
Request for entry into the European phase
Search/Exam
Apr 18, 2017
Information on entry into European phase
Search/Exam
Jun 28, 2016
Jun 9, 2016
Copy of the international search report
Search/Exam
Jun 9, 2016
Published international application - A1
Search/Exam
Feb 5, 2016
Feb 5, 2016
Feb 5, 2016
Dec 11, 2015
Dec 1, 2015
(Electronic) Receipt
PCTRO
Dec 1, 2015
Abstract
PCTRO
Dec 1, 2015
Claims
PCTRO
Dec 1, 2015
Description
PCTRO
Dec 1, 2015
Dec 1, 2015
Dec 1, 2015