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The patent EP3345688 was granted to Toshiba Mitsubishi Electric Industrial Systems on Dec 14, 2022. The application was filed on Sep 3, 2015 under application number EP15903041A. 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 |
|---|---|---|---|
| SMS GROUP | Sep 12, 2023 | RICHLY & RITSCHEL PATENTANWALTE PARTG 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 | JP2000176526 |
| INTERNATIONAL-SEARCH-REPORT | JP2014079778 |
| OPPOSITION | DE102006047718 |
| OPPOSITION | EP0810044 |
| OPPOSITION | EP1496129 |
| OPPOSITION | JP2007237240 |
| OPPOSITION | JP2014079778 |
| OPPOSITION | WO2004000476 |
| OPPOSITION | WO2011009819 |
| SEARCH | DE102006047718 |
| SEARCH | EP2524971 |
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 17, 2025
Dec 12, 2025
(Electronic) Receipt
Appeal
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
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Dec 12, 2025
Reply to appeal
Appeal
Aug 29, 2025
Aug 28, 2025
(Electronic) Receipt
Appeal
Aug 28, 2025
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Aug 12, 2025
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Aug 7, 2025
Aug 4, 2025
(Electronic) Receipt
Appeal
Aug 4, 2025
(Electronic) Receipt
Appeal
Aug 4, 2025
Aug 4, 2025
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Notice of appeal
Appeal
Aug 4, 2025
Notice of appeal
Appeal
Aug 4, 2025
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Means of redress
OPPO
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Jan 3, 2023
Nov 17, 2022
Decision to grant a European patent
Search/Exam
Nov 8, 2022
(Electronic) Receipt
Search/Exam
Nov 8, 2022
Filing of the translations of the claims
Search/Exam
Nov 8, 2022
French translation of claims
Search/Exam
Nov 8, 2022
German translation of the claims
Search/Exam
Nov 8, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 6, 2022
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Intention to grant (signatures)
Search/Exam
Jul 6, 2022
Text intended for grant (clean copy)
Search/Exam
Jul 6, 2022
May 10, 2021
(Electronic) Receipt
Search/Exam
May 10, 2021
Amended claims with annotations
Search/Exam
May 10, 2021
Claims
Search/Exam
May 10, 2021
Letter accompanying subsequently filed items
Search/Exam
May 10, 2021
Feb 23, 2021
Document concerning representation
Search/Exam
Feb 1, 2021
Annex to the communication
Search/Exam
Feb 1, 2021
Communication from the Examining Division
Search/Exam
Jan 26, 2021
Examination started
Search/Exam
Oct 25, 2019
(Electronic) Receipt
Search/Exam
Oct 25, 2019
Oct 25, 2019
Amended claims with annotations
Search/Exam
Oct 25, 2019
Oct 25, 2019
Amended description with annotations
Search/Exam
Oct 25, 2019
Amendments received before examination
Search/Exam
Oct 25, 2019
Letter accompanying subsequently filed items
Search/Exam
Apr 16, 2019
Mar 29, 2019
Mar 29, 2019
European search opinion
Search/Exam
Mar 29, 2019
Information on Search Strategy
Search/Exam
Mar 29, 2019
Supplementary European search report
Search/Exam
Mar 19, 2019
Search started
Search/Exam
Jun 13, 2018
Notification of forthcoming publication
Search/Exam
Apr 10, 2018
Apr 6, 2018
Communication to designated inventor
Search/Exam
Mar 21, 2018
Mar 21, 2018
Dec 21, 2017
Information regarding early processing
Search/Exam
Dec 6, 2017
(Electronic) Receipt
Search/Exam
Dec 6, 2017
Abstract
Search/Exam
Dec 6, 2017
Dec 6, 2017
Amended claims with annotations
Search/Exam
Dec 6, 2017
Claims
Search/Exam
Dec 6, 2017
Description
Search/Exam
Dec 6, 2017
Drawings
Search/Exam
Dec 6, 2017
Request for entry into the European phase
Search/Exam
Mar 9, 2017
Copy of the international search report
Search/Exam
Mar 9, 2017
Mar 9, 2017
International publication pamphlet
Search/Exam