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The patent EP3848112 was granted to Crealyst Group on May 18, 2022. The application was filed on Jun 25, 2019 under application number EP21158824A. 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 |
|---|---|---|---|
| TIME SERVICE CATALYST HANDLING | Feb 20, 2023 | REITSTOTTER KINZEBACH | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP2648837 |
| EXAMINATION | FR2721900 |
| OPPOSITION | BE899420 |
| OPPOSITION | DE1457867 |
| OPPOSITION | DE69110242T |
| OPPOSITION | FR2582955 |
| OPPOSITION | FR2721900 |
| OPPOSITION | US4433707 |
| OPPOSITION | US4972884 |
| OPPOSITION | US7588061 |
| OPPOSITION | US8991139 |
| OPPOSITION | WO2017167957 |
| SEARCH | CA3017426 |
| SEARCH | EP2648837 |
| SEARCH | FR2668131 |
| SEARCH | FR2721900 |
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.
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Decision to grant a European patent
Search/Exam
Apr 5, 2022
(Electronic) Receipt
Search/Exam
Apr 5, 2022
English translation of the claims
Search/Exam
Apr 5, 2022
Filing of the translations of the claims
Search/Exam
Apr 5, 2022
German translation of the claims
Search/Exam
Apr 5, 2022
Letter accompanying subsequently filed items
Search/Exam
Dec 20, 2021
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Intention to grant (signatures)
Search/Exam
Dec 20, 2021
Text intended for grant (clean copy)
Search/Exam
Dec 20, 2021
Nov 30, 2021
Examination started
Search/Exam
Nov 25, 2021
(Electronic) Receipt
Search/Exam
Nov 25, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 19, 2021
Jun 16, 2021
Notification of forthcoming publication
Search/Exam
May 7, 2021
Refund of fees
Search/Exam
May 3, 2021
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European search opinion
Search/Exam
May 3, 2021
European search report
Search/Exam
May 3, 2021
Information on Search Strategy
Search/Exam
Mar 3, 2021
Priority search results copy provided by EPO
Search/Exam
Feb 23, 2021
Abstract
Search/Exam
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Annex
Search/Exam
Feb 23, 2021
Claims
Search/Exam
Feb 23, 2021
Description
Search/Exam
Feb 23, 2021
Designation of inventor
Search/Exam
Feb 23, 2021
Drawings
Search/Exam
Feb 23, 2021
Matter concerning the application
Search/Exam
Feb 23, 2021
Request for grant of a European patent
Search/Exam
Feb 4, 2021
Priority search results copy provided by EPO
Search/Exam
Jan 29, 2020