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The patent EP3509190 was granted to Kabushiki Kaisha Toshiba on Apr 14, 2021. The application was filed on Aug 9, 2017 under application number EP17846090A. 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 |
|---|---|---|---|
| LINDE MATERIAL HANDLING | Jan 12, 2022 | PATENTSHIP PATENTANWALTSGESELLSCHAFT | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2009153353 |
| INTERNATIONAL-SEARCH-REPORT | JP2011147345 |
| INTERNATIONAL-SEARCH-REPORT | JPH1189144 |
| OPPOSITION | EP2591537 |
| OPPOSITION | EP2741401 |
| OPPOSITION | JP2008136298 |
| OPPOSITION | JP2009044860 |
| OPPOSITION | KR101251859B |
| OPPOSITION | US2005140236 |
| OPPOSITION | US2007152527 |
| OPPOSITION | US2010237735 |
| OPPOSITION | US2013181567 |
| OPPOSITION | US2015295459 |
| OPPOSITION | US2015303748 |
| OPPOSITION | US4924130 |
| OPPOSITION | US5818140 |
| OPPOSITION | US6121706 |
| OPPOSITION | US6836045 |
| OPPOSITION | US7038345 |
| OPPOSITION | US7362025 |
| OPPOSITION | US7459821 |
| OPPOSITION | US8089190 |
| OPPOSITION | US8994240 |
| OPPOSITION | WO2014155438 |
| OPPOSITION | WO2015177565 |
| SEARCH | US2005140236 |
| SEARCH | US6121706 |
| SEARCH | WO2014155438 |
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 22, 2025
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Dec 17, 2025
Nov 26, 2025
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Aug 13, 2024
Aug 13, 2024
Mar 15, 2024
Mar 12, 2024
(Electronic) Receipt
Appeal
Mar 12, 2024
Mar 12, 2024
Jan 12, 2024
Jan 4, 2024
(Electronic) Receipt
Appeal
Jan 4, 2024
Jan 4, 2024
Nov 21, 2023
Oct 5, 2023
Sep 29, 2023
(Electronic) Receipt
Appeal
Sep 29, 2023
Sep 29, 2023
Reply to appeal
Appeal
Jun 2, 2023
May 29, 2023
(Electronic) Receipt
Appeal
May 29, 2023
May 29, 2023
Claims
Appeal
May 29, 2023
May 29, 2023
Mar 27, 2023
Mar 27, 2023
Mar 17, 2023
(Electronic) Receipt
Appeal
Mar 17, 2023
Mar 17, 2023
Notice of appeal
Appeal
Jan 23, 2023
Jan 18, 2023
Jan 18, 2023
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Means of redress
OPPO
Jan 18, 2023
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Aug 29, 2022
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Apr 28, 2021
Mar 18, 2021
Decision to grant a European patent
Search/Exam
Mar 9, 2021
(Electronic) Receipt
Search/Exam
Mar 9, 2021
Filing of the translations of the claims
Search/Exam
Mar 9, 2021
French translation of claims
Search/Exam
Mar 9, 2021
German translation of the claims
Search/Exam
Nov 19, 2020
Nov 19, 2020
Nov 19, 2020
Intention to grant (signatures)
Search/Exam
Nov 19, 2020
Text intended for grant (clean copy)
Search/Exam
Nov 19, 2020
Oct 30, 2020
Examination started
Search/Exam
Sep 23, 2020
(Electronic) Receipt
Search/Exam
Sep 23, 2020
Sep 23, 2020
Amended claims with annotations
Search/Exam
Sep 23, 2020
Sep 23, 2020
Amended description with annotations
Search/Exam
Sep 23, 2020
Amendments received before examination
Search/Exam
Sep 23, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 24, 2020
Mar 6, 2020
Mar 6, 2020
Mar 6, 2020
European search opinion
Search/Exam
Mar 6, 2020
Information on Search Strategy
Search/Exam
Mar 6, 2020
Supplementary European search report
Search/Exam
Feb 25, 2020
Search started
Search/Exam
Jun 13, 2019
Notification of forthcoming publication
Search/Exam
Apr 9, 2019
Apr 5, 2019
Communication to designated inventor
Search/Exam
Apr 5, 2019
Communication to designated inventor
Search/Exam
Apr 5, 2019
Communication to designated inventor
Search/Exam
Apr 5, 2019
Communication to designated inventor
Search/Exam
Apr 5, 2019
Communication to designated inventor
Search/Exam
Mar 19, 2019
Mar 19, 2019
Feb 12, 2019
(Electronic) Receipt
Search/Exam
Feb 12, 2019
Abstract
Search/Exam
Feb 12, 2019
Feb 12, 2019
Amended claims with annotations
Search/Exam
Feb 12, 2019
Annex
Search/Exam
Feb 12, 2019
Claims
Search/Exam
Feb 12, 2019
Description
Search/Exam
Feb 12, 2019
Drawings
Search/Exam
Feb 12, 2019
Request for entry into the European phase
Search/Exam
Jan 11, 2019
Information on entry into European phase
Search/Exam
Mar 27, 2018
Mar 8, 2018
Copy of the international search report
Search/Exam
Mar 8, 2018
Mar 8, 2018
International publication pamphlet
Search/Exam