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The patent EP3619491 was granted to Mubea Carbo Tech on Jun 14, 2023. The application was filed on May 3, 2018 under application number EP18726343A. 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 |
|---|---|---|---|
| WSL PATENTANWALTE PARTNERSCHAFT | Mar 14, 2024 | - | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102010024320 |
| DESCRIPTION | US2012312614 |
| DESCRIPTION | US2015135939 |
| DESCRIPTION | US2016023688 |
| INTERNATIONAL-SEARCH-REPORT | DE102010032898 |
| INTERNATIONAL-SEARCH-REPORT | US2015135939 |
| INTERNATIONAL-SEARCH-REPORT | WO2012118015 |
| OPPOSITION | CN103238250 |
| OPPOSITION | CN103730616 |
| OPPOSITION | CN106515412 |
| OPPOSITION | DE102010024320 |
| OPPOSITION | DE102010050826 |
| OPPOSITION | DE102012015919 |
| OPPOSITION | DE102014107388 |
| OPPOSITION | DE102015003643 |
| OPPOSITION | DE102015103902 |
| OPPOSITION | DE102015111749 |
| OPPOSITION | EP3154103 |
| OPPOSITION | US2012103714 |
| OPPOSITION | US2015135939 |
| OPPOSITION | US2017036524 |
| OPPOSITION | US2017125756 |
| OPPOSITION | US9331321 |
| OPPOSITION | WO2013020707 |
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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Dec 10, 2025
Dec 4, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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Decision to grant a European patent
Search/Exam
Jan 31, 2023
Filing of the translations of the claims
Search/Exam
Jan 31, 2023
French translation of claims
Search/Exam
Jan 31, 2023
German translation of the claims
Search/Exam
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Intention to grant (signatures)
Search/Exam
Oct 4, 2022
Text intended for grant (clean copy)
Search/Exam
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Document concerning representation
Search/Exam
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Intention to grant (signatures)
Search/Exam
Mar 28, 2022
Text intended for grant (clean copy)
Search/Exam
Mar 28, 2022
Feb 7, 2022
Examination started
Search/Exam
Jun 17, 2020
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Amended claims with annotations
Search/Exam
Jun 17, 2020
Amendments received before examination
Search/Exam
Feb 12, 2020
Change to the inventor details
Search/Exam
Feb 12, 2020
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Letter concerning the inventor
Search/Exam
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Letter which had not been notified
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
Search/Exam
Dec 4, 2019
(Electronic) Receipt
Search/Exam
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Request for entry into the European phase
Search/Exam
Nov 19, 2019
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Information on entry into European phase
Search/Exam
Dec 13, 2018
Copy of the international search report
Search/Exam
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Published international application - A2
Search/Exam
Jun 25, 2018
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(Electronic) Receipt
PCTRO
May 3, 2018
Abstract
PCTRO
May 3, 2018
Claims
PCTRO
May 3, 2018
Description
PCTRO
May 3, 2018
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Drawings
PCTRO
May 3, 2018