The weekly litigation news digest is live. Subscribe now
The patent EP3842693 was granted to Ebara Environmental Plant on Feb 28, 2024. The application was filed on Aug 20, 2019 under application number EP19852391A. 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 |
|---|---|---|---|
| DORNBACH | Nov 27, 2024 | - | ADMISSIBLE |
| KANADEVIA INOVA | Nov 27, 2024 | SCHAAD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2007126246 |
| DESCRIPTION | JP2015124955 |
| INTERNATIONAL-SEARCH-REPORT | JP2007126246 |
| INTERNATIONAL-SEARCH-REPORT | JP2017109161 |
| INTERNATIONAL-SEARCH-REPORT | JPH109538 |
| SEARCH | EP1048900 |
| SEARCH | EP3660397 |
| SEARCH | JP2011027349 |
| SEARCH | JP2017109161 |
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
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 9, 2025
Dec 9, 2025
Dec 9, 2025
Dec 8, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 5, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Nov 27, 2025
Sep 5, 2025
Sep 5, 2025
Aug 29, 2025
Aug 29, 2025
Aug 29, 2025
Jul 29, 2025
Jul 29, 2025
Jul 29, 2025
Jul 29, 2025
Jul 29, 2025
Apr 14, 2025
Apr 14, 2025
Apr 9, 2025
Apr 9, 2025
Apr 9, 2025
Apr 9, 2025
Apr 9, 2025
Apr 9, 2025
Apr 9, 2025
Dec 10, 2024
Dec 10, 2024
Dec 10, 2024
Dec 2, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Mar 13, 2024
Feb 1, 2024
Decision to grant a European patent
Search/Exam
Jan 23, 2024
Change to the inventor details
Search/Exam
Jan 22, 2024
Jan 16, 2024
(Electronic) Receipt
Search/Exam
Jan 16, 2024
Filing of the translations of the claims
Search/Exam
Jan 16, 2024
French translation of claims
Search/Exam
Jan 16, 2024
German translation of the claims
Search/Exam
Jan 16, 2024
Letter accompanying subsequently filed items
Search/Exam
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Intention to grant (signatures)
Search/Exam
Sep 14, 2023
Text intended for grant (clean copy)
Search/Exam
Sep 14, 2023
Aug 11, 2023
Examination started
Search/Exam
Mar 11, 2022
Mar 11, 2022
Amended claims with annotations
Search/Exam
Mar 11, 2022
Mar 11, 2022
Amended description with annotations
Search/Exam
Mar 11, 2022
Amendments received before examination
Search/Exam
Sep 7, 2021
Aug 19, 2021
Notice on debiting of fees
Search/Exam
Aug 18, 2021
Aug 18, 2021
Aug 18, 2021
Aug 18, 2021
European search opinion
Search/Exam
Aug 18, 2021
Information on Search Strategy
Search/Exam
Aug 18, 2021
Supplementary European search report
Search/Exam
Jun 2, 2021
Notification of forthcoming publication
Search/Exam
Mar 26, 2021
Communication to designated inventor
Search/Exam
Mar 26, 2021
Communication to designated inventor
Search/Exam
Mar 26, 2021
Communication to designated inventor
Search/Exam
Mar 26, 2021
Communication to designated inventor
Search/Exam
Mar 26, 2021
Communication to designated inventor
Search/Exam
Mar 26, 2021
Communication to designated inventor
Search/Exam
Mar 26, 2021
Communication to designated inventor
Search/Exam
Mar 26, 2021
Communication to designated inventor
Search/Exam
Mar 26, 2021
Communication to designated inventor
Search/Exam
Mar 26, 2021
Communication to designated inventor
Search/Exam
Mar 26, 2021
Communication to designated inventor
Search/Exam
Mar 8, 2021
Mar 8, 2021
Feb 19, 2021
(Electronic) Receipt
Search/Exam
Feb 19, 2021
Abstract
Search/Exam
Feb 19, 2021
Feb 19, 2021
Claims
Search/Exam
Feb 19, 2021
Description
Search/Exam
Feb 19, 2021
Drawings
Search/Exam
Feb 19, 2021
Request for entry into the European phase
Search/Exam
Jan 15, 2021
Information on entry into European phase
Search/Exam
Mar 16, 2020
Mar 16, 2020
Feb 27, 2020
Copy of the international search report
Search/Exam
Feb 27, 2020
Feb 27, 2020
International publication pamphlet
Search/Exam