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The patent EP4004259 was granted to Thyssenkrupp Nucera on Oct 19, 2022. The application was filed on Aug 19, 2020 under application number EP20758201A. 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 |
|---|---|---|---|
| SUNFIRE | Jul 14, 2023 | HAUCK | ADMISSIBLE |
| SUNFIRE | Jul 14, 2023 | HAUCK PATENTANWALTSPARTNERSCHAFT MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0126490 |
| DESCRIPTION | WO2015007716 |
| INTERNATIONAL-SEARCH-REPORT | DE102015212503 |
| INTERNATIONAL-SEARCH-REPORT | DE102017216710 |
| INTERNATIONAL-SEARCH-REPORT | DE19805058 |
| INTERNATIONAL-SEARCH-REPORT | EP3358044 |
| INTERNATIONAL-SEARCH-REPORT | EP3486354 |
| OPPOSITION | DE102016202840 |
| OPPOSITION | EP3317435 |
| OPPOSITION | EP3339479 |
| OPPOSITION | EP3604617 |
| OPPOSITION | WO2019229019 |
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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Jul 15, 2025
Jul 15, 2025
Apr 7, 2025
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Means of redress
OPPO
Apr 7, 2025
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Nov 2, 2022
Sep 22, 2022
Decision to grant a European patent
Search/Exam
Sep 12, 2022
(Electronic) Receipt
Search/Exam
Sep 12, 2022
English translation of the claims
Search/Exam
Sep 12, 2022
Filing of the translations of the claims
Search/Exam
Sep 12, 2022
French translation of claims
Search/Exam
Aug 25, 2022
Payment submission rejected
Search/Exam
May 19, 2022
May 19, 2022
May 19, 2022
Intention to grant (signatures)
Search/Exam
May 19, 2022
Text intended for grant (clean copy)
Search/Exam
May 19, 2022
May 10, 2022
(Electronic) Receipt
Search/Exam
May 10, 2022
Letter accompanying subsequently filed items
Search/Exam
May 10, 2022
May 4, 2022
Apr 27, 2022
Examination started
Search/Exam
Mar 21, 2022
Mar 21, 2022
Mar 9, 2022
(Electronic) Receipt
Search/Exam
Mar 9, 2022
Annexes in respect of a client data request
Search/Exam
Mar 9, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 9, 2022
Mar 7, 2022
Feb 25, 2022
(Electronic) Receipt
Search/Exam
Feb 25, 2022
Feb 25, 2022
Amended claims with annotations
Search/Exam
Feb 25, 2022
Feb 25, 2022
Amendments received before examination
Search/Exam
Feb 25, 2022
Priority search results
Search/Exam
Feb 25, 2022
Request for entry into the European phase
Search/Exam
Jan 14, 2022
Information on entry into European phase
Search/Exam
Mar 29, 2021
Mar 23, 2021
Mar 23, 2021
Mar 23, 2021
Notification of the recording of a change
Search/Exam
Mar 15, 2021
(Electronic) Receipt
PCTRO
Mar 15, 2021
Mar 15, 2021
Mar 11, 2021
Copy of the international search report
Search/Exam
Mar 11, 2021
Copy of the international search report
Search/Exam
Mar 11, 2021
Published international application - A1
Search/Exam
Nov 27, 2020
Nov 27, 2020
ISR: cited documents
PCTISA
Nov 27, 2020
Nov 27, 2020
Nov 27, 2020
Nov 27, 2020
Sep 1, 2020
Sep 1, 2020
Aug 28, 2020
Aug 19, 2020
(Electronic) Receipt
PCTRO
Aug 19, 2020
Abstract
PCTRO
Aug 19, 2020
Claims
PCTRO
Aug 19, 2020
Description
PCTRO
Aug 19, 2020
Aug 19, 2020
Drawings
PCTRO
Aug 19, 2020