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The patent EP3300083 was granted to Mitsubishi Heavy Industries on May 12, 2021. The application was filed on Aug 25, 2016 under application number EP16855184A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| GNS GESELLSCHAFT FUR NUKLEAR SERVICE | Feb 14, 2022 | ANDREJEWSKI HONKE PATENT UND RECHTSANWALTE PARTNERSCHAFT MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2002207098 |
| INTERNATIONAL-SEARCH-REPORT | JP2015087300 |
| INTERNATIONAL-SEARCH-REPORT | JPS59126297 |
| INTERNATIONAL-SEARCH-REPORT | JPS6289000 |
| OPPOSITION | JP2002207098 |
| OPPOSITION | JP2015087300 |
| OPPOSITION | JPS59126297 |
| OPPOSITION | JPS60146200 |
| OPPOSITION | JPS6289000 |
| OPPOSITION | US5936863 |
| SEARCH | JP2002207098 |
| SEARCH | JP2015087300 |
| SEARCH | JPS59126297 |
| SEARCH | JPS60146200 |
| SEARCH | JPS6289000 |
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 14, 2025
Jul 14, 2025
Jul 14, 2025
Jul 9, 2025
Jul 9, 2025
Jul 8, 2025
Jun 12, 2025
Jun 10, 2025
(Electronic) Receipt
Appeal
Jun 10, 2025
Jun 10, 2025
Mar 28, 2025
Mar 28, 2025
Mar 28, 2025
Mar 25, 2025
Feb 10, 2025
Nov 12, 2024
Nov 6, 2024
(Electronic) Receipt
Appeal
Nov 6, 2024
Nov 6, 2024
Oct 10, 2024
Oct 10, 2024
Sep 27, 2024
Sep 23, 2024
(Electronic) Receipt
Appeal
Sep 23, 2024
Sep 23, 2024
May 16, 2024
May 16, 2024
May 7, 2024
May 3, 2024
Apr 26, 2024
(Electronic) Receipt
Appeal
Apr 26, 2024
Apr 26, 2024
Feb 19, 2024
Feb 13, 2024
(Electronic) Receipt
Appeal
Feb 13, 2024
Feb 13, 2024
Nov 20, 2023
Nov 14, 2023
(Electronic) Receipt
Appeal
Nov 14, 2023
Nov 14, 2023
Nov 14, 2023
Nov 14, 2023
Nov 14, 2023
Nov 14, 2023
Nov 14, 2023
Nov 14, 2023
Nov 14, 2023
Nov 14, 2023
Reply to appeal
Appeal
Aug 30, 2023
Aug 25, 2023
(Electronic) Receipt
Appeal
Aug 25, 2023
Aug 25, 2023
Aug 25, 2023
Aug 25, 2023
Aug 25, 2023
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Aug 25, 2023
Jun 23, 2023
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Jun 16, 2023
(Electronic) Receipt
Appeal
Jun 16, 2023
Jun 16, 2023
Notice of appeal
Appeal
May 22, 2023
May 22, 2023
May 22, 2023
May 16, 2023
May 16, 2023
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Means of redress
OPPO
Apr 26, 2023
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May 26, 2021
Apr 15, 2021
Decision to grant a European patent
Search/Exam
Apr 1, 2021
(Electronic) Receipt
Search/Exam
Apr 1, 2021
Filing of the translations of the claims
Search/Exam
Mar 30, 2021
Mar 30, 2021
Mar 30, 2021
Intention to grant (signatures)
Search/Exam
Mar 30, 2021
Text intended for grant (clean copy)
Search/Exam
Mar 30, 2021
Feb 16, 2021
(Electronic) Receipt
Search/Exam
Feb 16, 2021
Amended claims with annotations
Search/Exam
Feb 16, 2021
Amended description with annotations
Search/Exam
Feb 16, 2021
Claims
Search/Exam
Feb 16, 2021
Description
Search/Exam
Feb 16, 2021
French translation of claims
Search/Exam
Feb 16, 2021
German translation of the claims
Search/Exam
Feb 16, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 16, 2021
Jan 13, 2021
Jan 13, 2021
Jan 13, 2021
Text intended for grant (clean copy)
Search/Exam
Jan 13, 2021
Jan 11, 2021
Intention to grant (signatures)
Search/Exam
Oct 27, 2020
Examination started
Search/Exam
Dec 4, 2018
(Electronic) Receipt
Search/Exam
Dec 4, 2018
Dec 4, 2018
Amended claims with annotations
Search/Exam
Dec 4, 2018
Dec 4, 2018
Amended description with annotations
Search/Exam
Dec 4, 2018
Amendments received before examination
Search/Exam
Dec 4, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 22, 2018
Aug 2, 2018
Aug 2, 2018
European search opinion
Search/Exam
Aug 2, 2018
Information on Search Strategy
Search/Exam
Aug 2, 2018
Supplementary European search report
Search/Exam
Jul 19, 2018
Search started
Search/Exam
Apr 30, 2018
Comments on Written Opinion of ISA
Search/Exam
Apr 30, 2018
Apr 30, 2018
Mar 12, 2018
Mar 12, 2018
Feb 28, 2018
Notification of forthcoming publication
Search/Exam
Feb 1, 2018
Feb 1, 2018
Jan 24, 2018
Jan 22, 2018
Communication to designated inventor
Search/Exam
Jan 22, 2018
Communication to designated inventor
Search/Exam
Jan 22, 2018
Communication to designated inventor
Search/Exam
Jan 22, 2018
Communication to designated inventor
Search/Exam
Jan 22, 2018
Communication to designated inventor
Search/Exam
Jan 19, 2018
Jan 19, 2018
Jan 19, 2018
Enquiry with the International Bureau
Search/Exam
Dec 22, 2017
(Electronic) Receipt
Search/Exam
Dec 22, 2017
Abstract
Search/Exam
Dec 22, 2017
Dec 22, 2017
Amended claims with annotations
Search/Exam
Dec 22, 2017
Amended description with annotations
Search/Exam
Dec 22, 2017
Annex
Search/Exam
Dec 22, 2017
Claims
Search/Exam
Dec 22, 2017
Claims filed under Art.19 PCT
Search/Exam
Dec 22, 2017
Description
Search/Exam
Dec 22, 2017
Drawings
Search/Exam
Dec 22, 2017
Matter concerning the application
Search/Exam
Dec 22, 2017
Request for entry into the European phase
Search/Exam
May 10, 2017
Apr 20, 2017
Copy of the international search report
Search/Exam
Apr 20, 2017
Apr 20, 2017
International publication pamphlet
Search/Exam