The weekly litigation news digest is live. Subscribe now
The patent EP3884076 was granted to Umicore on Sep 7, 2022. The application was filed on Oct 31, 2019 under application number EP19800950A. 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 |
|---|---|---|---|
| HOFFMANN EITLE | Jun 6, 2023 | HOFFMANN EITLE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CN107964593 |
| DESCRIPTION | US2561439 |
| DESCRIPTION | US2627452 |
| INTERNATIONAL-SEARCH-REPORT | CN107964593 |
| INTERNATIONAL-SEARCH-REPORT | WO2011035915 |
| INTERNATIONAL-SEARCH-REPORT | WO2017121663 |
| OPPOSITION | CN105154659 |
| OPPOSITION | CN107964593 |
| OPPOSITION | EP0250342 |
| OPPOSITION | US2012240729 |
| OPPOSITION | US5131988 |
| OPPOSITION | US7169206 |
| OPPOSITION | WO2011035915 |
| OPPOSITION | WO2017121663 |
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
Mar 25, 2025
Mar 25, 2025
Dec 18, 2024
Dec 18, 2024
Dec 18, 2024
Dec 18, 2024
Dec 18, 2024
Dec 18, 2024
Dec 18, 2024
Dec 18, 2024
Means of redress
OPPO
Dec 18, 2024
Dec 18, 2024
Dec 18, 2024
Dec 18, 2024
Dec 18, 2024
Dec 12, 2024
Dec 9, 2024
Dec 9, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Nov 22, 2024
Nov 18, 2024
Nov 18, 2024
Nov 18, 2024
Nov 18, 2024
Nov 18, 2024
Nov 18, 2024
Nov 18, 2024
Nov 18, 2024
Nov 18, 2024
Nov 18, 2024
Nov 18, 2024
Oct 14, 2024
Oct 14, 2024
Oct 14, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Jun 4, 2024
Jun 4, 2024
Jun 4, 2024
Jun 4, 2024
Jun 4, 2024
Jun 4, 2024
Jun 4, 2024
Jun 3, 2024
Jun 3, 2024
May 17, 2024
May 17, 2024
May 17, 2024
May 16, 2024
May 13, 2024
May 13, 2024
May 13, 2024
May 13, 2024
Apr 30, 2024
Apr 30, 2024
Apr 30, 2024
Apr 30, 2024
Apr 30, 2024
Apr 30, 2024
Apr 30, 2024
Jan 19, 2024
Jan 15, 2024
Jan 15, 2024
Jan 15, 2024
Jan 15, 2024
Nov 7, 2023
Nov 2, 2023
Nov 2, 2023
Nov 2, 2023
Nov 2, 2023
Nov 2, 2023
Nov 2, 2023
Sep 20, 2023
Sep 18, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Jul 10, 2023
Refund of fees
OPPO
Jun 22, 2023
Jun 22, 2023
Jun 15, 2023
Jun 12, 2023
Jun 7, 2023
Jun 7, 2023
Jun 7, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Jun 6, 2023
Sep 20, 2022
Aug 11, 2022
Decision to grant a European patent
Search/Exam
Aug 1, 2022
(Electronic) Receipt
Search/Exam
Aug 1, 2022
Filing of the translations of the claims
Search/Exam
Aug 1, 2022
French translation of claims
Search/Exam
Aug 1, 2022
German translation of the claims
Search/Exam
Aug 1, 2022
Letter accompanying subsequently filed items
Search/Exam
Jun 17, 2022
Jun 17, 2022
Jun 17, 2022
Intention to grant (signatures)
Search/Exam
Jun 17, 2022
Text intended for grant (clean copy)
Search/Exam
Jun 17, 2022
Jun 2, 2022
Examination started
Search/Exam
Sep 1, 2021
Jul 15, 2021
(Electronic) Receipt
Search/Exam
Jul 15, 2021
Jul 15, 2021
Amended claims with annotations
Search/Exam
Jul 15, 2021
Amendments received before examination
Search/Exam
Jul 15, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 2, 2021
Jun 25, 2021
Priority search results copy provided by EPO
Search/Exam
Jun 10, 2021
Jun 1, 2021
(Electronic) Receipt
Search/Exam
Jun 1, 2021
Request for entry into the European phase
Search/Exam
Apr 6, 2021
Information on entry into European phase
Search/Exam
Jun 17, 2020
May 28, 2020
Copy of the international search report
Search/Exam
May 28, 2020
Published international application - A1
Search/Exam
Jan 28, 2020
ISR: cited documents
PCTISA
Jan 28, 2020
Jan 28, 2020
Jan 28, 2020
Nov 21, 2019
Nov 20, 2019
Nov 16, 2019
Oct 31, 2019
(Electronic) Receipt
PCTRO
Oct 31, 2019
Abstract
PCTRO
Oct 31, 2019
Claims
PCTRO
Oct 31, 2019
Description
PCTRO
Oct 31, 2019
Oct 31, 2019
Oct 31, 2019