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The patent EP3882582 was granted to Ishida on Jan 4, 2023. The application was filed on Mar 16, 2021 under application number EP21162820A. 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 |
|---|---|---|---|
| MAREL ICELAND EHF | Oct 4, 2023 | INSPICOS PS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JPS591126B |
| DESCRIPTION | WO2015141670 |
| OPPOSITION | EP1178292 |
| OPPOSITION | JP2007101333 |
| OPPOSITION | JP4781982B |
| OPPOSITION | JP6521225B |
| OPPOSITION | JPH0643011 |
| OPPOSITION | JPH11316153 |
| OPPOSITION | US10126162 |
| OPPOSITION | US5308930 |
| OPPOSITION | US5635679 |
| OPPOSITION | US6433288 |
| OPPOSITION | WO0125731 |
| OPPOSITION | WO2014035576 |
| SEARCH | JP2002107206 |
| SEARCH | JPH0643011 |
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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Oct 21, 2025
Oct 9, 2025
(Electronic) Receipt
Appeal
Oct 9, 2025
Oct 9, 2025
Reply to appeal
Appeal
Sep 23, 2025
Jun 10, 2025
Jun 3, 2025
(Electronic) Receipt
Appeal
Jun 3, 2025
Jun 3, 2025
Jun 3, 2025
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Jun 3, 2025
Apr 8, 2025
Apr 8, 2025
Apr 2, 2025
(Electronic) Receipt
Appeal
Apr 2, 2025
Notice of appeal
Appeal
Apr 2, 2025
Notice of appeal
Appeal
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
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Means of redress
OPPO
Feb 4, 2025
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Description
OPPO
Nov 13, 2024
Description
OPPO
Nov 13, 2024
Description
OPPO
Nov 13, 2024
Description
OPPO
Nov 13, 2024
Description
OPPO
Nov 13, 2024
Description
OPPO
Nov 13, 2024
Description
OPPO
Nov 13, 2024
Description
OPPO
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Jan 17, 2023
Dec 8, 2022
Decision to grant a European patent
Search/Exam
Nov 29, 2022
(Electronic) Receipt
Search/Exam
Nov 29, 2022
Filing of the translations of the claims
Search/Exam
Nov 29, 2022
French translation of claims
Search/Exam
Nov 29, 2022
German translation of the claims
Search/Exam
Nov 29, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 4, 2022
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Aug 4, 2022
Intention to grant (signatures)
Search/Exam
Aug 4, 2022
Text intended for grant (clean copy)
Search/Exam
Aug 4, 2022
Jul 12, 2022
Examination started
Search/Exam
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
Amended description with annotations
Search/Exam
Feb 25, 2022
Amendments received before examination
Search/Exam
Feb 25, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 27, 2021
Aug 25, 2021
Notification of forthcoming publication
Search/Exam
Aug 24, 2021
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Aug 24, 2021
Aug 24, 2021
European search opinion
Search/Exam
Aug 24, 2021
European search report
Search/Exam
Aug 24, 2021
Information on Search Strategy
Search/Exam
Jul 26, 2021
Search started
Search/Exam
Mar 19, 2021
Mar 19, 2021
Mar 19, 2021
Mar 16, 2021
Abstract
Search/Exam
Mar 16, 2021
Mar 16, 2021
Claims
Search/Exam
Mar 16, 2021
Description
Search/Exam
Mar 16, 2021
Designation of inventor
Search/Exam
Mar 16, 2021
Drawings
Search/Exam
Mar 16, 2021
Request for grant of a European patent
Search/Exam