The weekly litigation news digest is live. Subscribe now
The patent EP4017909 was granted to Ioniqa on Nov 15, 2023. The application was filed on Aug 20, 2020 under application number EP20757349A. 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 |
|---|---|---|---|
| POLYMETRIX | Aug 15, 2024 | HEPP WENGER RYFFEL | ADMISSIBLE |
| STRAWMAN | Aug 14, 2024 | HOFFMANN EITLE | ADMISSIBLE |
| CHEMPET | Aug 2, 2024 | BOTTERO | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | NL2022037B |
| DESCRIPTION | WO2016105200 |
| DESCRIPTION | WO2017111602 |
| DESCRIPTION | WO2018143798 |
| INTERNATIONAL-SEARCH-REPORT | EP0723951 |
| INTERNATIONAL-SEARCH-REPORT | JP2000053802 |
| INTERNATIONAL-SEARCH-REPORT | JP2008088096 |
| INTERNATIONAL-SEARCH-REPORT | US2019161595 |
| INTERNATIONAL-SEARCH-REPORT | WO2016010587 |
| OPPOSITION | CA3004759 |
| OPPOSITION | CN105367415 |
| OPPOSITION | CN105367425 |
| OPPOSITION | CN107189044 |
| OPPOSITION | CN110092396 |
| OPPOSITION | EP0723951 |
| OPPOSITION | EP1234812 |
| OPPOSITION | EP1254888 |
| OPPOSITION | FR1563765 |
| OPPOSITION | FR3053691 |
| OPPOSITION | JP2000053802 |
| OPPOSITION | JP2005264113 |
| OPPOSITION | JP2006232701 |
| OPPOSITION | JP2008088096 |
| OPPOSITION | JP5189266B |
| OPPOSITION | US10017454 |
| OPPOSITION | US2019161595 |
| OPPOSITION | US2488746 |
| OPPOSITION | US3583942 |
| OPPOSITION | US5869543 |
| OPPOSITION | US6689903 |
| OPPOSITION | WO2016010587 |
| OPPOSITION | WO2016096768 |
| OPPOSITION | WO2019009836 |
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
Oct 14, 2025
Oct 14, 2025
Oct 14, 2025
Oct 14, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 1, 2025
Jul 1, 2025
Jul 1, 2025
May 15, 2025
May 15, 2025
May 15, 2025
May 15, 2025
Apr 4, 2025
Apr 4, 2025
Annex
OPPO
Apr 4, 2025
Mar 26, 2025
Feb 11, 2025
Refund of fees
OPPO
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 7, 2025
Feb 5, 2025
Annex
OPPO
Feb 5, 2025
Feb 5, 2025
Feb 5, 2025
Feb 3, 2025
Feb 3, 2025
Annex
OPPO
Feb 3, 2025
Annex
OPPO
Feb 3, 2025
Feb 3, 2025
Jan 21, 2025
Jan 20, 2025
Jan 20, 2025
Jan 20, 2025
Jan 15, 2025
Jan 15, 2025
Annex
OPPO
Jan 15, 2025
Annex
OPPO
Jan 15, 2025
Annex
OPPO
Jan 15, 2025
Jan 15, 2025
Dec 12, 2024
Dec 12, 2024
Dec 12, 2024
Dec 12, 2024
Dec 12, 2024
Dec 12, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 2, 2024
Dec 2, 2024
Annex
OPPO
Dec 2, 2024
Dec 2, 2024
Aug 30, 2024
Aug 30, 2024
Aug 30, 2024
Aug 30, 2024
Aug 21, 2024
Aug 20, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 15, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
Aug 7, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Dec 29, 2023
Annexes in respect of a client data request
Search/Exam
Dec 29, 2023
Letter accompanying subsequently filed items
Search/Exam
Dec 29, 2023
Submission concerning representation
Search/Exam
Nov 28, 2023
Oct 19, 2023
Decision to grant a European patent
Search/Exam
Sep 29, 2023
(Electronic) Receipt
Search/Exam
Sep 29, 2023
Filing of the translations of the claims
Search/Exam
Sep 29, 2023
French translation of claims
Search/Exam
Sep 29, 2023
German translation of the claims
Search/Exam
Jun 15, 2023
Jun 15, 2023
Jun 15, 2023
Jun 15, 2023
Intention to grant (signatures)
Search/Exam
Jun 15, 2023
Text intended for grant (clean copy)
Search/Exam
Jun 15, 2023
May 16, 2023
Examination started
Search/Exam
Jun 1, 2022
Apr 13, 2022
Apr 6, 2022
Priority search results copy provided by EPO
Search/Exam
Mar 7, 2022
Feb 22, 2022
(Electronic) Receipt
Search/Exam
Feb 22, 2022
Feb 22, 2022
Amended claims with annotations
Search/Exam
Feb 22, 2022
Request for entry into the European phase
Search/Exam
Jan 10, 2022
Information on entry into European phase
Search/Exam
Mar 15, 2021
Feb 25, 2021
Copy of the international search report
Search/Exam
Feb 25, 2021
Published international application - A1
Search/Exam
Dec 4, 2020
Nov 12, 2020
ISR: cited documents
PCTISA
Nov 12, 2020
ISR: cover sheet
PCTISA
Nov 12, 2020
Nov 12, 2020
Nov 12, 2020
Sep 11, 2020
Aug 28, 2020
Aug 27, 2020
Aug 24, 2020
Aug 20, 2020
(Electronic) Receipt
PCTRO
Aug 20, 2020
Abstract
PCTRO
Aug 20, 2020
Claims
PCTRO
Aug 20, 2020
Description
PCTRO
Aug 20, 2020
Aug 20, 2020
Drawings
PCTRO
Aug 20, 2020